subject:(Mach)

Vanderbilt University

1. Qin, Kun. Slow Light Mach-Zehnder Interferometer for Optical Label-free Biosensing.

Degree: MS, Electrical Engineering, 2014, Vanderbilt University

URL: http://hdl.handle.net/1803/12070

► This work presents the design, fabrication, and characterization of a small footprint Mach-Zehnder interferometer (MZI) that possesses strong light-matter interaction. The demonstrated MZI structure is… (more)

Subjects/Keywords: Slow Light; Biosensing; Mach-Zehnder Interferometer; Photonics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Qin, K. (2014). Slow Light Mach-Zehnder Interferometer for Optical Label-free Biosensing. (Thesis). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/12070

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Qin, Kun. “Slow Light Mach-Zehnder Interferometer for Optical Label-free Biosensing.” 2014. Thesis, Vanderbilt University. Accessed January 23, 2021. http://hdl.handle.net/1803/12070.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Qin, Kun. “Slow Light Mach-Zehnder Interferometer for Optical Label-free Biosensing.” 2014. Web. 23 Jan 2021.

Vancouver:

Qin K. Slow Light Mach-Zehnder Interferometer for Optical Label-free Biosensing. [Internet] [Thesis]. Vanderbilt University; 2014. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1803/12070.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Qin K. Slow Light Mach-Zehnder Interferometer for Optical Label-free Biosensing. [Thesis]. Vanderbilt University; 2014. Available from: http://hdl.handle.net/1803/12070

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New Mexico

2. Orlicz, Gregory. Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements.

Degree: Mechanical Engineering, 2012, University of New Mexico

URL: http://hdl.handle.net/1928/20858

► Experiments were performed at the horizontal shock tube facility at Los Alamos National Laboratory to study the effect of incident shock Mach number (M) on… (more)

▼ Experiments were performed at the horizontal shock tube facility at Los Alamos National Laboratory to study the effect of incident shock Mach number (M) on the development of the Richtmyer-Meshkov instability after a shock wave impulsively accelerates a varicose-perturbed, heavy-gas curtain (air-SF6-air). Three cases of incident shock strength were experimentally investigated: M = 1.21, 1.36, and 1.50. The resulting instability and subsequent fluid mixing is measured using simultaneous quantitative Planar Laser-Induced Fluorescence (PLIF) and Particle Image Velocimetry (PIV) for the first time in a Richtmyer-Meshkov Mach number study, while exceptional experimental repeatability allows for isolation of Mach number effects. Investigated are the mechanisms that drive the mixing, at both large and small scales, by examining the time evolution of simultaneous, 2-D density and velocity fields for each Mach number. Several differences in qualitative flow features are identified as a result of Mach number variation, with differences in vortex interaction playing a critical role in the development of the flow field. Several quantities, including mixing layer width, mixing layer area, interface length, vorticity, circulation, velocity fluctuations, instantaneous mixing rate, the density self-correlation parameter, and other measures of turbulence and mixedness are examined as a function of time. These quantities are also examined versus time scaled with the convection velocity of the mixing layer, showing that the rate of change of several of these quantities with the distance the mixing layer travels is independent of Mach number. Results show that higher Mach number yields greater mixing uniformity at a given downstream location, while lower Mach number produces greater amount of mixing between the two gases, suggesting possible implications for optimization in applications with confined geometries. Advisors/Committee Members: Vorobieff, Peter, Prestridge, Kathy, Truman, Randall, Poroseva, Svetlana, Atanassov, Plamen.

Subjects/Keywords: Transition flow; Turbulence; Mixing; Mach number.

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APA (6^th Edition):

Orlicz, G. (2012). Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/20858

Chicago Manual of Style (16^th Edition):

Orlicz, Gregory. “Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements.” 2012. Doctoral Dissertation, University of New Mexico. Accessed January 23, 2021. http://hdl.handle.net/1928/20858.

MLA Handbook (7^th Edition):

Orlicz, Gregory. “Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements.” 2012. Web. 23 Jan 2021.

Vancouver:

Orlicz G. Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements. [Internet] [Doctoral dissertation]. University of New Mexico; 2012. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1928/20858.

Council of Science Editors:

Orlicz G. Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements. [Doctoral Dissertation]. University of New Mexico; 2012. Available from: http://hdl.handle.net/1928/20858

3. Pagkali, Varvara. Ανάπτυξη οπτικών ανοσοαισθητήρων για την ταυτόχρονη ανίχνευση τοξικών ουσιών σε τρόφιμα.

Degree: 2019, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)

URL: http://hdl.handle.net/10442/hedi/45477

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In this thesis a label-free optical biosensor for the fast simultaneous determination of three mycotoxins, aflatoxin B1 (AFB1), fumonisin B1 (FB1) and deoxynivalenol (DON) and… (more)

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In this thesis a label-free optical biosensor for the fast simultaneous determination of three mycotoxins, aflatoxin B1 (AFB1), fumonisin B1 (FB1) and deoxynivalenol (DON) and for the determination of ochratoxin A (OTA) in beer samples is presented. The biosensor is based on an array of ten Mach-Zehnder interferometers (MZIs) monolithically integrated along with their respective broad-band silicon light sources onto a single chip (37 mm2). Multi-analyte determination is accomplished by functionalizing the sensing arms of individual MZIs with mycotoxin-protein conjugates. Assay is performed by pumping over the chip mixtures of calibrators or samples with a mixture of specific monoclonal antibodies, followed by reaction with a secondary anti-mouse IgG antibody. An external miniaturized spectrometer was employed to continuously record the transmission spectra of each interferometer. Spectral shifts obtained due to immunoreactions were transformed to phase shifts through Discrete Fourier Transform. The detection limits achieved for AFB1, FB1, DON and OTA were 0.8, 5.6, 20 and 2.0 ng/ml in beer, respectively, while the assay duration for AFB1, FB1, DON was 12 min and for OTA 50 min. Recovery values ranging from 85 to 116% were determined in beer samples spiked with known concentrations of the four mycotoxins. In addition, beers of different types and origin were analysed with the biosensor developed and the results were compared with those provided by established laboratory methods, further supporting the accuracy of the proposed device. The good analytical performance of the biosensor and the small size of the proposed chip provide for the development of a portable instrument for point-of-need determinations.

Στην παρούσα διατριβή αναπτύχθηκε οπτικός βιοαισθητήρας τύπου Mach-Zehnder για τον προσδιορισμό χωρίς τη χρήση ιχνηθετών τεσσάρων μυκοτοξινών, ωχρατοξίνης Α (ΟΤΑ), αφλατοξίνης Β1 (AFB1), φουμονισίνης Β1 (FB1) και δεοξυνιβαλενόλης (DON), σε δείγματα μπύρας. Ο αισθητήρας βασίστηκε σε μια συστοιχία από δέκα συμβολόμετρα Mach-Zehnder (MZI), κάθε ένα μονολιθικά ολοκληρωμένο με την αντίστοιχη ευρέος φάσματος πηγή φωτός, σε μια μόνο ψηφίδα πυριτίου. Ο προσδιορισμός πολλαπλών αναλυτών επετεύχθη με ακινητοποίηση διαφορετικών ειδικών δεσμευτικών αντιδραστηρίων (προϊόντα συζεύξεως μυκοτοξίνης-πρωτεΐνης) στους διαφορετικούς αισθητήρες της ίδιας ψηφίδας. Η ανάλυση διεξήχθη με διαβίβαση, μέσω εξωτερικής αντλίας, πάνω από τις ψηφίδες, μιγμάτων βαθμονομητών ή δειγμάτων με διαλύματα των ειδικών μονοκλωνικών αντισωμάτων, ακολουθούμενη από αντίδραση με διάλυμα αντισώματος αίγας κατά των γ-σφαιρινών ποντικού. Οι αντιδράσεις παρακολουθήθηκαν σε πραγματικό χρόνο με συνεχή καταγραφή των φασμάτων εξόδου, τα οποία στη συνέχεια υποβλήθηκαν σε διακριτό μετασχηματισμό Fourier για να μετατραπούν οι μετατοπίσεις του φάσματος σε μετατοπίσεις φάσεων. Τα όρια ανίχνευσης που επιτεύχθηκαν για τις AFB1, FB1, DON και ΟΤΑ σε μπύρα ήταν 0,8, 5,6, 20 και 2,0 ng/ml αντίστοιχα, ενώ η διάρκεια της ανάλυσης κατά τον ταυτόχρονο προσδιορισμό των AFB1, FB1…

Subjects/Keywords: Μυκοτοξίνες; Μονολιθικά ολοκληρωμένο συμβολόμετρο τύπου Mach-Zehnder; Μπύρα; Mycotoxins; Monolithically integrated Mach-Zehnder interferometers; Beer

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pagkali, V. (2019). Ανάπτυξη οπτικών ανοσοαισθητήρων για την ταυτόχρονη ανίχνευση τοξικών ουσιών σε τρόφιμα. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/45477

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pagkali, Varvara. “Ανάπτυξη οπτικών ανοσοαισθητήρων για την ταυτόχρονη ανίχνευση τοξικών ουσιών σε τρόφιμα.” 2019. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed January 23, 2021. http://hdl.handle.net/10442/hedi/45477.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pagkali, Varvara. “Ανάπτυξη οπτικών ανοσοαισθητήρων για την ταυτόχρονη ανίχνευση τοξικών ουσιών σε τρόφιμα.” 2019. Web. 23 Jan 2021.

Vancouver:

Pagkali V. Ανάπτυξη οπτικών ανοσοαισθητήρων για την ταυτόχρονη ανίχνευση τοξικών ουσιών σε τρόφιμα. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2019. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10442/hedi/45477.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pagkali V. Ανάπτυξη οπτικών ανοσοαισθητήρων για την ταυτόχρονη ανίχνευση τοξικών ουσιών σε τρόφιμα. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2019. Available from: http://hdl.handle.net/10442/hedi/45477

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Mahenc, Guillaume. Localisation par retournement temporel de sources acoustiques supersoniques en milieu réverbérant : Supersonic sources localization in reverberant environments using acoustic time reversal techniques.

Degree: Docteur es, Mécanique, 2016, Paris, CNAM

URL: http://www.theses.fr/2016CNAM1075

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On s'intéresse à la localisation de l'axe du cône de Mach lié au déplacement supersonique d'un source acoustique en milieu réverbérant à l'aide d'un nombre… (more)

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On s'intéresse à la localisation de l'axe du cône de Mach lié au déplacement supersonique d'un source acoustique en milieu réverbérant à l'aide d'un nombre limité de microphones. L'application faisant l'objet du financement doctoral est la localisation de tireurs embusqués, dans le cadre de la protection du combattant. Le principe du retournement temporel stipule que, lors de la réémission des mesures renversées dans le temps depuis leurs positions respectives, tout se passe comme si le champ de pression acoustique se propageait en remontant le temps et focalisait à l'endroit de la distribution de sources. Cette focalisation est d'autant plus efficace que les positions de capteurs ont tendance à former une surface fermée autour des sources. On considère une distribution discrète de microphones à hauteur constante dans une rue rectiligne. Dans une première approche, le déplacement supersonique est modélisé selon le principe de Huygens-Fresnel comme une sommation de sources monopolaires. Cela permet une formulation analytique du problème direct pouvant être résolue par des simulations numériques simples en accord avec un montage expérimental de synthèse de cône de Mach au moyen d'une ligne de haut-parleurs. La résolution du problème inverse se fait en calculant numériquement le champ rétropropagé depuis les positions des microphones jusque dans des tranches verticales disposées le long de la rue. L'utilisation d'un critère statistique d'ordre supérieur permet de réduire la contribution des termes de sources dans le champ rétropropagé, à l'origine d'une divergence du champ de pression autour des positions de microphones. L'axe du cône de Mach peut alors être localisé avec une bonne précision angulaire. Dans une deuxième approche, on considère un front d'onde conique réel en déplacement supersonique. Les temps d'arrivée obéissent à des lois de retard bien précises. Notre modèle de réverbération permet de prédire la plupart des pics correspondant à l'arrivée au point de mesure des signaux impulsionnels réfléchis. La réverbération n'a pas un effet aussi bénéfique dans le cadre d'une source supersonique réelle que dans le cas d'une source statique, ni même que dans celui de la ligne de haut-parleurs, car la source supersonique présente des contraintes géométriques particulières dont le retournement temporel ne tient pas compte, étant donnée la différence de géométrie des ondes directe (un cône) et retournée dans le temps (une superposition d'ondes sphériques). Cependant, la focalisation autour du passage de l'axe est observée dans les tranches horizontales, avec une qualité dépendant fortement de l'agencement de l'antenne de microphones.

We are interested into the localisation of the Mach cone – created by the supersonic motion of an acoustic source into a reverberant medium – by means of a limited amount of microphones. The application concerns sniper localisation, hence protection of the soldier. Theory of time-reversal states that when reemitting measures reversed in time from their respective positions,…

Advisors/Committee Members: Melon, Manuel (thesis director).

Subjects/Keywords: Retournement temporel; Acoustique; Réverbération; Cône de Mach; Time reversal; Acoustics; Reverberation; Mach cone; 620.2; 534.2

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mahenc, G. (2016). Localisation par retournement temporel de sources acoustiques supersoniques en milieu réverbérant : Supersonic sources localization in reverberant environments using acoustic time reversal techniques. (Doctoral Dissertation). Paris, CNAM. Retrieved from http://www.theses.fr/2016CNAM1075

Chicago Manual of Style (16^th Edition):

Mahenc, Guillaume. “Localisation par retournement temporel de sources acoustiques supersoniques en milieu réverbérant : Supersonic sources localization in reverberant environments using acoustic time reversal techniques.” 2016. Doctoral Dissertation, Paris, CNAM. Accessed January 23, 2021. http://www.theses.fr/2016CNAM1075.

MLA Handbook (7^th Edition):

Mahenc, Guillaume. “Localisation par retournement temporel de sources acoustiques supersoniques en milieu réverbérant : Supersonic sources localization in reverberant environments using acoustic time reversal techniques.” 2016. Web. 23 Jan 2021.

Vancouver:

Mahenc G. Localisation par retournement temporel de sources acoustiques supersoniques en milieu réverbérant : Supersonic sources localization in reverberant environments using acoustic time reversal techniques. [Internet] [Doctoral dissertation]. Paris, CNAM; 2016. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2016CNAM1075.

Council of Science Editors:

Mahenc G. Localisation par retournement temporel de sources acoustiques supersoniques en milieu réverbérant : Supersonic sources localization in reverberant environments using acoustic time reversal techniques. [Doctoral Dissertation]. Paris, CNAM; 2016. Available from: http://www.theses.fr/2016CNAM1075

5. Altazin, Thomas. Un modèle d'interaction fluide-structure en régime compressible faible Mach : A fluid-structure interaction model for low-Mach compressible flows.

Degree: Docteur es, Mécanique et calcul scientifique, 2017, Toulon

URL: http://www.theses.fr/2017TOUL0021

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L’objectif de cette étude est de modéliser et de simuler numériquement des phénomènes d’interaction fluide-structure dans un cadre compressible pour des écoulements non-visqueux. La modélisation… (more)

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L’objectif de cette étude est de modéliser et de simuler numériquement des phénomènes d’interaction fluide-structure dans un cadre compressible pour des écoulements non-visqueux. La modélisation proposée repose sur une formulation monolithique du couplage fluide-structure en considérant une unique équation permettant de résoudre simultanément le mouvement du fluide et du solide. Un terme supplémentaire dans l’équation de quantité de mouvement traduit la présence de l’obstacle dans l’écoulement. La contribution de ce terme de pénalisation est étudiée à travers l’analogie avec une formulation variationnelle et un intérêt est porté à la rigueur physique, mathématique et numérique de l’unification des deux milieux, en particulier à l’interface. L’approche numérique correspond à une méthode à pas fractionnaire, en tout point identique aux méthodes de prédiction correction utilisées en incompressible. Quelques résultats numériques clôturent ce travail et permettent de préciser les conditions d’application de ce modèle d’interaction fluide-structure en régime compressible.

This study deals with the modeling and simulation of fluid-structure interactions in a compressible framework for inviscid flows. A monolithic approach has been chosen for treating the coupling between the fluid and the solid through a single equation that solves the motion of both simultaniously. An additionnal term in the momentum equation allows to take into account the obstacle in the flow. A weak formulation is derived from previous similar works that confirms the unification problem is mathematically well-posed, especially on the interface. The numerical procedure relies on a time-splitting method similar to prediction-correction methods for incompressible flows. Some numerical examples illustrate this work and allows to conclude on the feasibility of this fluid-structure interaction model for compressible flows.

Advisors/Committee Members: Golay, Frédéric (thesis director), Fraunié, Philippe (thesis director).

Subjects/Keywords: Écoulement compressible; Domaines fictifs; Faible Mach; Compressible flow; Fictitious domains; Low Mach

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Altazin, T. (2017). Un modèle d'interaction fluide-structure en régime compressible faible Mach : A fluid-structure interaction model for low-Mach compressible flows. (Doctoral Dissertation). Toulon. Retrieved from http://www.theses.fr/2017TOUL0021

Chicago Manual of Style (16^th Edition):

Altazin, Thomas. “Un modèle d'interaction fluide-structure en régime compressible faible Mach : A fluid-structure interaction model for low-Mach compressible flows.” 2017. Doctoral Dissertation, Toulon. Accessed January 23, 2021. http://www.theses.fr/2017TOUL0021.

MLA Handbook (7^th Edition):

Altazin, Thomas. “Un modèle d'interaction fluide-structure en régime compressible faible Mach : A fluid-structure interaction model for low-Mach compressible flows.” 2017. Web. 23 Jan 2021.

Vancouver:

Altazin T. Un modèle d'interaction fluide-structure en régime compressible faible Mach : A fluid-structure interaction model for low-Mach compressible flows. [Internet] [Doctoral dissertation]. Toulon; 2017. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2017TOUL0021.

Council of Science Editors:

Altazin T. Un modèle d'interaction fluide-structure en régime compressible faible Mach : A fluid-structure interaction model for low-Mach compressible flows. [Doctoral Dissertation]. Toulon; 2017. Available from: http://www.theses.fr/2017TOUL0021

6. Maillot, Yohann. Etude de la propagation d’une onde de souffle en milieu non-homogène – étude expérimentale : Study of a shock wave propagation in a non-homogeneous environment - experimental study.

Degree: Docteur es, 420014, 2018, Bourges, INSA Centre Val de Loire

URL: http://www.theses.fr/2018ISAB0010

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Ces travaux de thèse présentés dans ce mémoire concernent l’évolution d’onde de souffle en milieu non-idéalisé. L’évolution d’une onde de souffle en champ libre peut… (more)

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Ces travaux de thèse présentés dans ce mémoire concernent l’évolution d’onde de souffle en milieu non-idéalisé. L’évolution d’une onde de souffle en champ libre peut être décrite par divers résultats empiriques disponibles dans la littérature ou par des formulations théoriques. Pourtant, dès qu’il est question d’approuver les résultats d’un code de simulation décrivant l’évolution une onde de souffle dans un milieu complexe, les connaissances sur le développement des ondes en milieu idéalisé ne suffisent plus. Dès lors, il faut acquérir de nouvelles données expérimentales afin de valider les différents outils de simulation du CEA. Les résultats de ce mémoire s’inscrivent dans ce projet. Des essais à petite échelle ont été dimensionnés afin de correspondre à un scénario avec une nature d’explosif différente de celle employée au laboratoire. La charge utilisée est gazeuse et est constituée de propane-oxygène en proportion stœchiométrique. Pour mesurer les différentes caractéristiques des ondes de souffle et d’acquérir de nouveaux résultats, deux systèmes de mesure ont été utilisées. Des capteurs de pression ont été installés au sol, couplés à un système de visualisation avec une caméra rapide dont le montage se rapproche de l’ombroscopie. Plusieurs configurations ont permis d’avoir une base solide sur les grandeurs définissant les ondes incidentes et réfléchies en champ libre. L’étude porte essentiellement sur la réflexion de Mach. Par la suite des obstacles isolés ont été installés sur le parcours d’une onde incidente ou de Mach afin de représenter des effets de surface. Les résultats ont montré une modification des caractéristiques et de la morphologie des ondes à l’aval des obstacles.

The study presented in this thesis concerns the evolution of a shock wave in a non-idealized environnment. The evolution of a free-field shock wave can be described by various empirical results found in the literature or by theoretical formulations. However, as soon as it is a question of approving the results of a simulation code describing the evolution of a shock wave in a complex environnment, knowledge about the development of waves in a free-field is no longer sufficient. Therefore, new experimental data must be acquired to validate the different simulation tools in-house. The results of this thesis are part of this project. Small-scale tests have been sized to fit a scenario with an explosive nature different from that used in the laboratory. The source used is gaseous and made of propane oxygen at a stoichiometric proportion. To measure the different characteristics of a shock wave and to acquire new results, two measurement systems were used. Pressure sensors have been installed on the ground, coupled with a visualization system with a high speed camera whose is close to shadowscopy. Several configurations allowed to have solid basis on the characteristics defining the incident and reflected shock waves in free field. The study focuses on Mach's reflection moreover on Mach stem. Subsequently isolated obstacles were…

Advisors/Committee Members: Sochet, Isabelle (thesis director).

Subjects/Keywords: Détonation; Onde de choc; Pied de Mach; Detonation; Shock wave; Mach stem

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Maillot, Y. (2018). Etude de la propagation d’une onde de souffle en milieu non-homogène – étude expérimentale : Study of a shock wave propagation in a non-homogeneous environment - experimental study. (Doctoral Dissertation). Bourges, INSA Centre Val de Loire. Retrieved from http://www.theses.fr/2018ISAB0010

Chicago Manual of Style (16^th Edition):

Maillot, Yohann. “Etude de la propagation d’une onde de souffle en milieu non-homogène – étude expérimentale : Study of a shock wave propagation in a non-homogeneous environment - experimental study.” 2018. Doctoral Dissertation, Bourges, INSA Centre Val de Loire. Accessed January 23, 2021. http://www.theses.fr/2018ISAB0010.

MLA Handbook (7^th Edition):

Maillot, Yohann. “Etude de la propagation d’une onde de souffle en milieu non-homogène – étude expérimentale : Study of a shock wave propagation in a non-homogeneous environment - experimental study.” 2018. Web. 23 Jan 2021.

Vancouver:

Maillot Y. Etude de la propagation d’une onde de souffle en milieu non-homogène – étude expérimentale : Study of a shock wave propagation in a non-homogeneous environment - experimental study. [Internet] [Doctoral dissertation]. Bourges, INSA Centre Val de Loire; 2018. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2018ISAB0010.

Council of Science Editors:

Maillot Y. Etude de la propagation d’une onde de souffle en milieu non-homogène – étude expérimentale : Study of a shock wave propagation in a non-homogeneous environment - experimental study. [Doctoral Dissertation]. Bourges, INSA Centre Val de Loire; 2018. Available from: http://www.theses.fr/2018ISAB0010

7. Camilo, Mauricio Eiji. Produção de Interferômetros Mach-Zehnder utilizando guias de onda do tipo pedestal e filmes finos de Bi₂O₃-WO₃-TeO₂ para aplicações em sensores ópticos integrados.

Degree: Mestrado, Microeletrônica, 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-30122014-113909/ ;

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Neste trabalho foram produzidos Interferômetros Mach-Zehnder (IMZ) a partir de guias de onda do tipo pedestal com filmes finos de Bi₂O₃-WO₃-TeO₂ (BWT) como camada de… (more)

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Neste trabalho foram produzidos Interferômetros Mach-Zehnder (IMZ) a partir de guias de onda do tipo pedestal com filmes finos de Bi₂O₃-WO₃-TeO₂ (BWT) como camada de núcleo para aplicações em sensores ópticos integrados. A influência dos parâmetros e dos materiais utilizados nas etapas de processo foi verificada. Os valores de índice de refração efetivo e coeficiente de absorção em função do comprimento de onda foram obtidos para os filmes finos BWT. Os guias de onda pedestais foram caracterizados por Microscopia Eletrônica de Varredura, medidas de perda por propagação e perfis de campo próximo em 633 nm e 1050 nm. Os valores mínimos obtidos nas perdas por propagação foram de ~1,5 dB/cm em 633 nm e 3,0 dB/cm em 1050 nm. As medidas de perfis de campo próximo mostraram que guias de onda com larguras superiores a 7 m apresentaram comportamento multimodo. Foram obtidos IMZs que apresentaram guiamento de luz por toda a estrutura, com comportamento multimodo. Sensores ópticos de pressão e temperatura foram produzidos. A fabricação de diafragmas através do processo de corrosão úmida do silício é apresentada no sensor de pressão. Sensores ópticos de temperatura foram produzidos com filamentos metálicos. As cavidades ópticas não foram obtidas nesse sensor. A potência de luz na saída dos sensores de temperatura foi medida em função da diferença de potencial aplicada no filamento metálico. Os resultados apresentados mostram que guias de onda do tipo pedestal produzidos com núcleo de BWT são promissores para aplicações em sensores ópticos integrados.

In this work Mach-Zehnder Interferometers (MZI) were produced from the pedestal-type waveguides with Bi₂O₃-WO₃-TeO₂ (BWT) thin films as the core layer for applications in integrated optical sensors. The influence of the parameters and materials used in the process steps was verified. The values of the effective refractive index and absorption coefficient as a function of wavelength were obtained for the BWT thin films. The pedestal waveguides were characterized by Scanning Electron Microscopy, by propagation loss measurements and near-field profiles at 633 nm and 1050 nm. The minimum values obtained by propagation losses were ~ 1.5 dB/cm at 633 nm and 3.0 dB/cm at 1050 nm. The measures of near-field profiles showed that waveguides with widths larger than 7 m presented multimode behavior. The MZIs obtained presented guiding light through the structure, with multimode behavior. Optical pressure sensors and temperature sensors were produced. The production of diaphragms using the wet etching process of silicon is presented on the pressure sensor. Optical temperature sensors were made with metallic filaments. Optical cavities were not obtained in this sensor. The light power in the output of the temperature sensors was measured as the voltage applied to the metal filament. The results show that the waveguides produced with pedestal-type and BWT thin films as core layer are promising for applications in integrated optical sensors.

Advisors/Committee Members: Kassab, Luciana Reyes Pires.

Subjects/Keywords: Filmes finos; Guias de onda; Interferômetro Mach-Zehnder; Mach-Zehnder Interferometer; Optical sensors; Pedestal; Pedestal; Sensores ópticos; Thin films; Waveguides

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Camilo, M. E. (2014). Produção de Interferômetros Mach-Zehnder utilizando guias de onda do tipo pedestal e filmes finos de Bi₂O₃-WO₃-TeO₂ para aplicações em sensores ópticos integrados. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3140/tde-30122014-113909/ ;

Chicago Manual of Style (16^th Edition):

Camilo, Mauricio Eiji. “Produção de Interferômetros Mach-Zehnder utilizando guias de onda do tipo pedestal e filmes finos de Bi₂O₃-WO₃-TeO₂ para aplicações em sensores ópticos integrados.” 2014. Masters Thesis, University of São Paulo. Accessed January 23, 2021. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-30122014-113909/ ;.

MLA Handbook (7^th Edition):

Camilo, Mauricio Eiji. “Produção de Interferômetros Mach-Zehnder utilizando guias de onda do tipo pedestal e filmes finos de Bi₂O₃-WO₃-TeO₂ para aplicações em sensores ópticos integrados.” 2014. Web. 23 Jan 2021.

Vancouver:

Camilo ME. Produção de Interferômetros Mach-Zehnder utilizando guias de onda do tipo pedestal e filmes finos de Bi₂O₃-WO₃-TeO₂ para aplicações em sensores ópticos integrados. [Internet] [Masters thesis]. University of São Paulo; 2014. [cited 2021 Jan 23]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-30122014-113909/ ;.

Council of Science Editors:

Camilo ME. Produção de Interferômetros Mach-Zehnder utilizando guias de onda do tipo pedestal e filmes finos de Bi₂O₃-WO₃-TeO₂ para aplicações em sensores ópticos integrados. [Masters Thesis]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-30122014-113909/ ;

8. Siarkowski, Acácio Luiz. Implementação de sensores ópticos integrados para aplicações em análises químicas e ambientais.

Degree: PhD, Microeletrônica, 2007, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-26072007-162928/ ;

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Este trabalho tem como objetivo o desenvolvimento de sensores químicos ópticos baseados no Interferômetro Mach-Zehnder (MZI) para aplicações em análises químicas e ambientais. Tais dispositivos… (more)

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Este trabalho tem como objetivo o desenvolvimento de sensores químicos ópticos baseados no Interferômetro Mach-Zehnder (MZI) para aplicações em análises químicas e ambientais. Tais dispositivos foram implementados a partir da fabricação de guias de ondas sobre um substrato de silício monocristalino. Os guias de onda foram obtidos através da deposição de filmes finos de nitreto de silício (Si3N4) e óxido de silício (SiO2) obtidos por técnicas de deposição química a vapor (CVD) e pela oxidação térmica do substrato de silício. A definição destes guias de ondas para a implementação de sensores é feita por processos convencionais de litografia e corrosão. Os sensores químicos deste trabalho baseiam-se na interação do campo evanescente do modo que propaga-se no guia de onda exposto a algum composto químico na fase líquida ou gasosa. Tais sensores foram projetados, simulados e implementados para as seguintes aplicações: Medida da concentração de glicose em soluções; Medida de umidade por efeito de espalhamento; Detecção de vapores de compostos orgânicos voláteis (VOC\'s). As etapas de processo para a fabricação dos sensores químicos ópticos foram definidas a partir das simulações em óptica integrada e, após os processos de fabricação, os filmes obtidos foram caracterizados. Os filmes de Si3N4 SiO2 utilizados na fabricação do sensor óptico possuem uniformidade em espessura e homogeneidade quanto aos valores de índice de refração, baixa rugosidade superficial e baixos níveis de incorporação de água e ligações OH. No entanto, os valores de rugosidade e desuniformidade aumentaram significativamente após as etapas de corrosão úmida para a definição das estruturas dos sensores ópticos. Os guias de ondas implementados apresentaram um guiamento monomodo (TE0) e os valores de atenuação experimentais ficaram entre 2 e 20 dB/cm e dependem dos valores de rugosidade superficial e lateral dos guias de ondas e da desuniformidade dos filmes empregados. Com as medidas de concentração de glicose, verificou-se o funcionamento e a sensibilidade dos sensores químicos ópticos implementados, levantando-se curvas de variação da intensidade de saída do MZI em função do índice de refração de soluções de glicose padronizadas (dn/dc). Realizou-se medidas de umidade através da implementação de um sensor óptico simplificado que tem como princípio o efeito de espalhamento óptico. Como o espalhamento óptico depende da rugosidade e do contraste de índices de refração na interface exposta ao ambiente, foi possível detectar a quantidade de água presente no dispositivo. Posteriormente, analisou-se a aplicação de HMDS (Hexametildissilazana) como filme de adsorção de compostos orgânicos voláteis (VOC\'s). Os VOC\'s foram aplicados sobre os sensores químicos ópticos em forma de vapor e os resultados obtidos para n-Hexano e 2-Propanol mostraram uma boa reprodutibilidade e alta sensibilidade.

The aim of this work is the development of optical chemical sensors based on Mach-Zehnder Interferometer (MZI) for chemical and environmental analysis applications. Such…

Advisors/Committee Members: Borges, Ben-Hur Viana, Morimoto, Nilton Itiro.

Subjects/Keywords: Análise química; Chemical analyse; Filmes finos; Interferômetro Mach-Zehnder; Mach-Zehnder interferometer; Optical sensor; Sensor óptico; Thin films

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Siarkowski, A. L. (2007). Implementação de sensores ópticos integrados para aplicações em análises químicas e ambientais. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3140/tde-26072007-162928/ ;

Chicago Manual of Style (16^th Edition):

Siarkowski, Acácio Luiz. “Implementação de sensores ópticos integrados para aplicações em análises químicas e ambientais.” 2007. Doctoral Dissertation, University of São Paulo. Accessed January 23, 2021. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-26072007-162928/ ;.

MLA Handbook (7^th Edition):

Siarkowski, Acácio Luiz. “Implementação de sensores ópticos integrados para aplicações em análises químicas e ambientais.” 2007. Web. 23 Jan 2021.

Vancouver:

Siarkowski AL. Implementação de sensores ópticos integrados para aplicações em análises químicas e ambientais. [Internet] [Doctoral dissertation]. University of São Paulo; 2007. [cited 2021 Jan 23]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-26072007-162928/ ;.

Council of Science Editors:

Siarkowski AL. Implementação de sensores ópticos integrados para aplicações em análises químicas e ambientais. [Doctoral Dissertation]. University of São Paulo; 2007. Available from: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-26072007-162928/ ;

9. Lavalle, Gianluca. Modélisation d'un film liquide cisaillé par un écoulement de gaz par une approche intégrale : Integral modeling of liquid films sheared by a gas flow.

Degree: Docteur es, Dynamique des fluides, 2014, Toulouse, ISAE

URL: http://www.theses.fr/2014ESAE0051

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Dans de nombreuses applications aérospatiales, on peut trouver des films liquides cisaillés, c'est-à-dire une fine couche liquide qui ruisselle sur une paroi entrainée par le… (more)

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Dans de nombreuses applications aérospatiales, on peut trouver des films liquides cisaillés, c'est-à-dire une fine couche liquide qui ruisselle sur une paroi entrainée par le gaz. Par exemple, une couche de liquide peut se développer sur la voilure des avions, givrer et dégrader les performances. Des vagues peuvent se développer à l'interface liquide-gaz, et l'analyse correcte de ces instabilités devient très importante pour modéliser ce phénomène physique. En effet, la présence d'instabilités modifie les échanges liquide-gaz, notamment les transferts de masse et chaleur. Le but de cette thèse est de développer une technique permettant de coupler la phase gazeuse afin de reproduire les interactions à l'interface. La couche de liquide étant beaucoup plus mince que celle du gaz, une approche intégrale sur l'épaisseur est utilisée pour la modélisation. Enfin, deux cas d'un écoulement diphasique se développant dans une conduite confinée et dans une conduite plus large sont étudiés. les résultats sont ensuite comparés à des autres méthodes de référence, plus coûteuses en temps de calcul.

In many aerospace applications one can find liquid films sheared by a gas flow. In example, these liquid sheets can develop on aircraft wings, freeze and then destroy the aerodynamics performances. Waves can develop at the liquid-gas interface, and the correct analysis of such instabilities becomes very important to model this physical phenomenon. Indeed, instabilities mdify liquid-gas exchanges, such as mass and heat transfers. The aim of the present work consists in developing a technique to couple the liquid phase to the gas phase in order to reproduce the interactions at the interface. Since the liquid layer is much thinner then the gas, anintegral approach is used for modeling. Finally, two cases of a two-phase flow developing in a strictly confined channel and in a large channel are studied. Results are then compared to other reference methods which are more expensive in terms of computational cost.

Advisors/Committee Members: Charru, François (thesis director), Laurent, Claire (thesis director).

Subjects/Keywords: Film mince; Interface; Saint-Venant; Bas-Mach; ALE; Thin films; Interfacial flows; Shallow water; Low-Mach; ALE; 532

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lavalle, G. (2014). Modélisation d'un film liquide cisaillé par un écoulement de gaz par une approche intégrale : Integral modeling of liquid films sheared by a gas flow. (Doctoral Dissertation). Toulouse, ISAE. Retrieved from http://www.theses.fr/2014ESAE0051

Chicago Manual of Style (16^th Edition):

Lavalle, Gianluca. “Modélisation d'un film liquide cisaillé par un écoulement de gaz par une approche intégrale : Integral modeling of liquid films sheared by a gas flow.” 2014. Doctoral Dissertation, Toulouse, ISAE. Accessed January 23, 2021. http://www.theses.fr/2014ESAE0051.

MLA Handbook (7^th Edition):

Lavalle, Gianluca. “Modélisation d'un film liquide cisaillé par un écoulement de gaz par une approche intégrale : Integral modeling of liquid films sheared by a gas flow.” 2014. Web. 23 Jan 2021.

Vancouver:

Lavalle G. Modélisation d'un film liquide cisaillé par un écoulement de gaz par une approche intégrale : Integral modeling of liquid films sheared by a gas flow. [Internet] [Doctoral dissertation]. Toulouse, ISAE; 2014. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2014ESAE0051.

Council of Science Editors:

Lavalle G. Modélisation d'un film liquide cisaillé par un écoulement de gaz par une approche intégrale : Integral modeling of liquid films sheared by a gas flow. [Doctoral Dissertation]. Toulouse, ISAE; 2014. Available from: http://www.theses.fr/2014ESAE0051

Université de Grenoble

10. Decaix, Jean. Modélisation et simulation de la turbulence compressible en milieu diphasique : application aux écoulements cavitants instationnaires : Modeling and simulation of compressible turbulence in two-phase : application to the cavitating unsteady flow.

Degree: Docteur es, Mécanique, génie mécanique, 2012, Université de Grenoble

URL: http://www.theses.fr/2012GRENI061

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La simulation des écoulements cavitants est confrontée à des difficultés de modélisation et de résolution numérique provenant des caractéristiques particulières de ces écoulements : changement… (more)

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La simulation des écoulements cavitants est confrontée à des difficultés de modélisation et de résolution numérique provenant des caractéristiques particulières de ces écoulements : changement de phase, gradient de masse volumique important, variation du nombre de Mach, turbulence diphasique, instationnarités. Dans cette thèse, nous nous sommes appliqués à dériver proprement le modèle de mélange homogène 1-fluide couplé à une modélisation RANS de la turbulence. A partir des termes contenus dans ces équations et de la nature des écoulements cavitants étudiés, plusieurs modèles de turbulence basés sur la notion de viscosité turbulente ont été testés : modèles faiblement non-linéaires (corrections SST et de réalisabilité), ajout des termes de turbulence compressible, application de la correction de Reboud, modèles hybrides RANS/LES (DES, SAS). Ces modèles ont été incorporés dans un code compressible qui fait appel à une résolution implicite en pas de temps dual des équations de conservation avec une technique de pré-conditionnement bas-Mach pour traiter les zones incompressibles. Les simulations 2D et 3D ont porté sur deux géométries de type Venturi caractérisées par la présence d’une poche de cavitation instationnaire due à l’existence d’un jet rentrant liquide/vapeur le long de la paroi. Elles montrent que l’ensemble des modèles sont capables de capturer le jet rentrant. En revanche, la dynamique de la poche varie entre les modèles et le manque de données expérimentales ne permet pas de discriminer les modèles entre eux. Il apparaît à la vue des résultats que les approches avec la correction de Reboud ou les modèles SAS améliorent la simulation des écoulements.

The computation of cavitating flows is a challenging issue due to the characteristics of these flows : phase transition, large density gradient, Mach number variation, interaction between phases and turbulent flow, unsteadiness. In the present study, we performed a derivation of the one-fluid compressible homogenous model coupled with a RANS approach for the turbulent flow. From these equations and the nature of the cavitating flows, several models based on the eddy viscosity assumption have been tested : weakly non-linear models (SST and realisability corrections), compressible turbulence models, hybrid RANS/LES turbulence models (SAS, DES) and the Reboud correction. All the models are implemented in a compressible code, which solves the equations using an implicit dual-time stepping method coupling with a pre-conditionning technique for the incompressible area. 2D and 3D computations are performed on two Venturi geometries characterized by an unsteady cavitation sheet with a liquid/vapor re-entrant jet. All the models are able to capture the re-entrant jet. Nevertheless, the dynamic behaviour differs from one model to another and the lack of experimental data prevents to discriminate the models between them. From the results, the computations with the SAS model and the Reboud correction improve the prediction of the flow.

Advisors/Committee Members: Goncalves Da Silva, Eric (thesis director).

Subjects/Keywords: Cavitation; URANS; Turbulence Compressible; SAS; Pré-conditionnement bas-Mach; Cavitation; URANS; Compressible Turbulence; SAS; Low-Mach Pre-conditionning

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Decaix, J. (2012). Modélisation et simulation de la turbulence compressible en milieu diphasique : application aux écoulements cavitants instationnaires : Modeling and simulation of compressible turbulence in two-phase : application to the cavitating unsteady flow. (Doctoral Dissertation). Université de Grenoble. Retrieved from http://www.theses.fr/2012GRENI061

Chicago Manual of Style (16^th Edition):

Decaix, Jean. “Modélisation et simulation de la turbulence compressible en milieu diphasique : application aux écoulements cavitants instationnaires : Modeling and simulation of compressible turbulence in two-phase : application to the cavitating unsteady flow.” 2012. Doctoral Dissertation, Université de Grenoble. Accessed January 23, 2021. http://www.theses.fr/2012GRENI061.

MLA Handbook (7^th Edition):

Decaix, Jean. “Modélisation et simulation de la turbulence compressible en milieu diphasique : application aux écoulements cavitants instationnaires : Modeling and simulation of compressible turbulence in two-phase : application to the cavitating unsteady flow.” 2012. Web. 23 Jan 2021.

Vancouver:

Decaix J. Modélisation et simulation de la turbulence compressible en milieu diphasique : application aux écoulements cavitants instationnaires : Modeling and simulation of compressible turbulence in two-phase : application to the cavitating unsteady flow. [Internet] [Doctoral dissertation]. Université de Grenoble; 2012. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2012GRENI061.

Council of Science Editors:

Decaix J. Modélisation et simulation de la turbulence compressible en milieu diphasique : application aux écoulements cavitants instationnaires : Modeling and simulation of compressible turbulence in two-phase : application to the cavitating unsteady flow. [Doctoral Dissertation]. Université de Grenoble; 2012. Available from: http://www.theses.fr/2012GRENI061

11. Gonçalves, Didier. Mise en œuvre et exploitation d'un spectromètre imageur pour l'étude sismique et la dynamique atmosphérique des planètes géantes : Development and tests of an imaging interferometer for seismology of the giant planets.

Degree: Docteur es, Sciences de la planète et de l'univers, 2018, Université Côte d'Azur (ComUE)

URL: http://www.theses.fr/2018AZUR4009

► Connaitre précisément la structure interne des corps célestes est indispensable pour, à la fois, comprendre la physique qui régit leur existence et le processus qui… (more)

▼ Connaitre précisément la structure interne des corps célestes est indispensable pour, à la fois, comprendre la physique qui régit leur existence et le processus qui leur a donné naissance. La sismologie, d’abord appliquée à la Terre puis au soleil, s’est révélée être un outil très efficace pour sonder leurs intérieurs. Dans les années 70 (Vorontsov et al 1976), des premiers travaux théoriques ont étudié la possibilité d’une sismologie des planètes géantes gazeuses. Les premières tentatives de mesures d’oscillations ont eu lieu à la fin des années 80. La détection des modes d’oscillations de Jupiter s’est avérée une entreprise très délicate en raison de sa rotation rapide. Pour augmenter les chances de détection, un instrument spécifique a été construit au début des années 2000 à l’OCA. Cet instrument, appelé SYMPA, est un spectromètre imageur de type Mach-Zehnder capable de produire une carte de vitesse radiale de Jupiter. Une détection de modes d’oscillations sur Jupiter par cet instrument a été publiée par Gaulme et al en 2011. Une version améliorée de l’instrument (appelé DSI) a été proposée pour la mission spatiale JUICE à destination de Jupiter, et un nouveau prototype a été construit dans ce but. Par la suite, le projet s’est réorienté vers un programme d’observation depuis le sol sous la forme d’un réseau de trois télescopes répartis en longitude (USA, France, Japon) et financé par l’ANR à partir de 2015 (ANR JOVIAL). L’intérêt de la mise en réseau est d’assurer la continuité des données (météo mise à part). L’instrument étant capable de produire des cartes de vitesse radiales, le projet permet également l’étude de la dynamique atmosphérique des planètes géantes. Ce travail de thèse s’inscrit dans le contexte de préparation de JOVIAL, avec pour objectif de caractériser l’instrument en laboratoire et d’identifier les problèmes liés aux conditions réelles d’observation. Les mesures en laboratoires ont montré des performances conformes aux attentes, avec un bruit de mesure propre à l’instrument inférieur au bruit de photon attendu sur Jupiter. Les premières mesures sur le ciel avec un télescope ont mis en évidence une sensibilité de l’instrument au degré de polarisation de la lumière ainsi qu’une dérive de la vitesse mesurée liée aux instabilités de position de la pupille pendant les observations. Le design de l’instrument et de son interface avec le télescope a été revu pour résoudre ces problèmes. Plusieurs campagnes d’observations de Jupiter ont été réalisées, permettant de mettre sur pied une chaine complète de traitement des données, dont la validité a été vérifiée par des simulations réalistes. Les observations de Jupiter ont donné des résultats scientifiques particulièrement intéressants. L’analyse des données de deux campagnes de 2015 et 2016 a fourni des séquences temporelles de cartes de vitesses radiales de Jupiter. Une première étude a consisté à chercher dans ces cartes la signature des vents zonaux et de les comparer aux mesures réalisées par suivi des nuages sur des images résolues… Advisors/Committee Members: Schmider, François-Xavier (thesis director).

Subjects/Keywords: Sismologie; Jupiter; Spectromètre; Interféromètre; Mach-Zehnder; Vents zonaux; Seismology; Jupiter; Spetrometer; Interferometer; Mach-Zehnder; Zonal winds

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gonçalves, D. (2018). Mise en œuvre et exploitation d'un spectromètre imageur pour l'étude sismique et la dynamique atmosphérique des planètes géantes : Development and tests of an imaging interferometer for seismology of the giant planets. (Doctoral Dissertation). Université Côte d'Azur (ComUE). Retrieved from http://www.theses.fr/2018AZUR4009

Chicago Manual of Style (16^th Edition):

Gonçalves, Didier. “Mise en œuvre et exploitation d'un spectromètre imageur pour l'étude sismique et la dynamique atmosphérique des planètes géantes : Development and tests of an imaging interferometer for seismology of the giant planets.” 2018. Doctoral Dissertation, Université Côte d'Azur (ComUE). Accessed January 23, 2021. http://www.theses.fr/2018AZUR4009.

MLA Handbook (7^th Edition):

Gonçalves, Didier. “Mise en œuvre et exploitation d'un spectromètre imageur pour l'étude sismique et la dynamique atmosphérique des planètes géantes : Development and tests of an imaging interferometer for seismology of the giant planets.” 2018. Web. 23 Jan 2021.

Vancouver:

Gonçalves D. Mise en œuvre et exploitation d'un spectromètre imageur pour l'étude sismique et la dynamique atmosphérique des planètes géantes : Development and tests of an imaging interferometer for seismology of the giant planets. [Internet] [Doctoral dissertation]. Université Côte d'Azur (ComUE); 2018. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2018AZUR4009.

Council of Science Editors:

Gonçalves D. Mise en œuvre et exploitation d'un spectromètre imageur pour l'étude sismique et la dynamique atmosphérique des planètes géantes : Development and tests of an imaging interferometer for seismology of the giant planets. [Doctoral Dissertation]. Université Côte d'Azur (ComUE); 2018. Available from: http://www.theses.fr/2018AZUR4009

12. Brasseur, Paul. Mach Zehnder interferometry and coherent manipulation of the valley in a graphene PN junction : Interférométrie de Mach Zehnder et manipulation cohérente de la vallée dans une jonction pn dans une monocouche de graphène.

Degree: Docteur es, Physique, 2020, université Paris-Saclay

URL: http://www.theses.fr/2020UPASP012

► L’optique quantique électronique, i.e. la réalisation de l’analogue électronique d’expériences d’optique quantique, constitue un champ de recherche récent, en plein développement, et offrant des perspectives… (more)

▼ L’optique quantique électronique, i.e. la réalisation de l’analogue électronique d’expériences d’optique quantique, constitue un champ de recherche récent, en plein développement, et offrant des perspectives intéressantes pour l’informatique quantique. Dans ce cadre, l’un des enjeux est la réalisation de bits quantiques en utilisant des états électroniques, ainsi que la formation d’états électroniques intriqués, éléments de bases pour réaliser des calculs quantiques plus élaborés. Les expériences menées jusqu’à présent dans des hétérostructures semi-conductrices de GaAs/AlGaAs ont mis en évidence la possibilité d’encoder l’information dans la charge ou le spin d’un électron, mais la décohérence importante de ces systèmes induit une grande fragilité de ces états quantiques, qui ne peuvent exister qu’en-dessous de 100mK et pour des tensions résiduelles inférieures à 40μV. Cette fragilité rend difficile la fabrication d’états intriqués, et est limitante pour le développement de calculs quantiques complexes. En 2005, la découverte d’un matériau novateur, le graphène, a ouvert de nouvelles perspectives avec la prédiction d’une cohérence de phase plus grande, et, d’autre part, l’existence en plus du spin d’un nouveau degré de liberté, la vallée, donnant accès à de nouvelles possibilités pour encoder l’information. Dans un premier temps, ce travail de thèse porte sur la manipulation cohérente de la vallée, nécessaire à la réalisation d’un bit quantique de vallée dans le graphène. Pour cela est utilisée, en régime Hall quantique, une jonction pn, formée à l’aide de grilles déposées sur un échantillon de graphène encapsulé dans du nitrure de Bohr. Afin d’obtenir un contrôle électrostatique sur la polarisation en vallée des électrons incidents, des grilles locales ont été déposées, à l’intersection de la jonction pn avec le bord physique du graphène. En alliant ce contrôle électrostatique à celui de la phase Aharanov-Bohm, il nous est possible de manipuler de manière cohérente la vallée d’un électron sur l’ensemble de la sphère de Bloch représentant la polarisation en vallée. Dans la suite, la cohérence des états quantiques formés est étudiée grâce à un interféromètre de Mach Zehnder, via l’observation de la dépendance des interférences en fonction de la tension appliquée sur les électrons incidents, et de la température du système. Les états quantiques obtenus sont exceptionnellement résistants, ils persistent au-delà de 1.5K et de 1mV, soit à des énergies près de 20 fois supérieures à celles observées dans le GaAs/AlGaAs.Puis, ce manuscrit décrit l’étude de la longueur de cohérence, correspondant à la distance sur laquelle un électron peut se propager en gardant sa cohérence de phase, ce qui n’avait encore jamais été mesuré dans le graphène. Pour ce faire, la dépendance des interférences vis-à-vis de la température a été mesurée sur trois jonctions pn de longueurs différentes. Une longueur de cohérence a ainsi été extraite pour les deux régimes de décohérence observés ; dont une record, pour le régime à basses températures,… Advisors/Committee Members: Roche, Patrice (thesis director).

Subjects/Keywords: Interférométrie de Mach Zehnder; Optique quantique électronique; Graphène; Vallée-tronique; Mach Zehnder interferometry; Electron quantum optics; Graphene; Valleytronics

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APA (6^th Edition):

Brasseur, P. (2020). Mach Zehnder interferometry and coherent manipulation of the valley in a graphene PN junction : Interférométrie de Mach Zehnder et manipulation cohérente de la vallée dans une jonction pn dans une monocouche de graphène. (Doctoral Dissertation). université Paris-Saclay. Retrieved from http://www.theses.fr/2020UPASP012

Chicago Manual of Style (16^th Edition):

Brasseur, Paul. “Mach Zehnder interferometry and coherent manipulation of the valley in a graphene PN junction : Interférométrie de Mach Zehnder et manipulation cohérente de la vallée dans une jonction pn dans une monocouche de graphène.” 2020. Doctoral Dissertation, université Paris-Saclay. Accessed January 23, 2021. http://www.theses.fr/2020UPASP012.

MLA Handbook (7^th Edition):

Brasseur, Paul. “Mach Zehnder interferometry and coherent manipulation of the valley in a graphene PN junction : Interférométrie de Mach Zehnder et manipulation cohérente de la vallée dans une jonction pn dans une monocouche de graphène.” 2020. Web. 23 Jan 2021.

Vancouver:

Brasseur P. Mach Zehnder interferometry and coherent manipulation of the valley in a graphene PN junction : Interférométrie de Mach Zehnder et manipulation cohérente de la vallée dans une jonction pn dans une monocouche de graphène. [Internet] [Doctoral dissertation]. université Paris-Saclay; 2020. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2020UPASP012.

Council of Science Editors:

Brasseur P. Mach Zehnder interferometry and coherent manipulation of the valley in a graphene PN junction : Interférométrie de Mach Zehnder et manipulation cohérente de la vallée dans une jonction pn dans une monocouche de graphène. [Doctoral Dissertation]. université Paris-Saclay; 2020. Available from: http://www.theses.fr/2020UPASP012

13. Dimitriadou, Evangelia. Σχεδιασμός λογικών πυλών με οπτικούς ενισχυτές κβαντικών κουκκίδων.

Degree: 2014, Democritus University of Thrace (DUTH); Δημοκρίτειο Πανεπιστήμιο Θράκης (ΔΠΘ)

URL: http://hdl.handle.net/10442/hedi/31595

► All-optical logic gates are key building units for the evolution of photonic networks in which information is handled exclusively in the optical domain. This all-optical… (more)

▼ All-optical logic gates are key building units for the evolution of photonic networks in which information is handled exclusively in the optical domain. This all-optical approach to perform switching for the purposes of logic and computing has gained intense research interest by the scientific community owing to the significant benefits that it offers over its electronic counterpart, such as the exceptional ultrafast response to information data and the accompanying convenience in keeping pace with the tremendous increase in the capacity of optical systems, the capability to form logical architectures of advanced level, the full transparency to data rate, the realistic power consumption, the reduced latency, the compact size and the affordable cost. Driven by the need for further improvements and innovation in order to overcome the limitations imposed by the employment of electronic components and the associated electronic bottleneck, this doctoral dissertation proposes to implement logic gates in an all-optical manner by exploiting quantum-dot semiconductor optical amplifiers (QD-SOAs) in an interferometric configuration. QD-SOAs with their unique optical properties and exceptional ultrafast response are promising candidates for ultrafast all-optical signal processing applications. Hence, their employment in schemes destined for executing Boolean logic exclusively by means of light is expected to be beneficial for developing all-optical networks without problematic optoelectronic conversions. In this context, the feasibility of implementing ultrafast all-optical logic gates using a single properly configured and driven Mach–Zehnder interferometer (MZI) with QD-SOAs has been thoroughly investigated. For this purpose a suitable model that describes the behavior of the QD-SOA-based MZI has been applied. In the first stage this model takes into account the propagation of a strong optical signal along the QD-SOA through a photon rate equation, as well as the concomitant change of the QD-SOA gain dynamics described by the 3-level rate equations for the electron transitions between the three considered energy states of the QD-SOA conduction band. This system of four coupled partial differential equations, of which one is space dependent while the rest are time dependent, was numerically solved in a step-wise manner using the 4th order Runge- Kutta method. In the second stage the outcome of the aforementioned procedure was linked to the MZI model in order to find the power emerging at the MZI output. The appropriate algorithm that describes this modeling was implemented in Matlab. The execution of various basic Boolean operations has been accomplished both with logical correctness and high quality, a task that has not been realized before in a systematic manner to such an extent. This was done for QD-SOAs operating in the 1550 nm wavelength window and for 160 Gb/s return-to-zero data in the case of the gates NOT, NOR, NAND and XNOR, whereas the target data rate for the AND operation was 320 Gb/s. The followed approach…

Subjects/Keywords: Αμιγώς οπτική λογική; Συμβολόμετρο Mach Zehnder; Οπτικός ενισχυτής κβαντικών κουκκίδων; All-optical logic; Mach Zehnder interferometer; Quantum-dot semiconductor optical amplifier

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APA (6^th Edition):

Dimitriadou, E. (2014). Σχεδιασμός λογικών πυλών με οπτικούς ενισχυτές κβαντικών κουκκίδων. (Thesis). Democritus University of Thrace (DUTH); Δημοκρίτειο Πανεπιστήμιο Θράκης (ΔΠΘ). Retrieved from http://hdl.handle.net/10442/hedi/31595

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dimitriadou, Evangelia. “Σχεδιασμός λογικών πυλών με οπτικούς ενισχυτές κβαντικών κουκκίδων.” 2014. Thesis, Democritus University of Thrace (DUTH); Δημοκρίτειο Πανεπιστήμιο Θράκης (ΔΠΘ). Accessed January 23, 2021. http://hdl.handle.net/10442/hedi/31595.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dimitriadou, Evangelia. “Σχεδιασμός λογικών πυλών με οπτικούς ενισχυτές κβαντικών κουκκίδων.” 2014. Web. 23 Jan 2021.

Vancouver:

Dimitriadou E. Σχεδιασμός λογικών πυλών με οπτικούς ενισχυτές κβαντικών κουκκίδων. [Internet] [Thesis]. Democritus University of Thrace (DUTH); Δημοκρίτειο Πανεπιστήμιο Θράκης (ΔΠΘ); 2014. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10442/hedi/31595.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dimitriadou E. Σχεδιασμός λογικών πυλών με οπτικούς ενισχυτές κβαντικών κουκκίδων. [Thesis]. Democritus University of Thrace (DUTH); Δημοκρίτειο Πανεπιστήμιο Θράκης (ΔΠΘ); 2014. Available from: http://hdl.handle.net/10442/hedi/31595

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

14. Liou, Jia-hong. Fabrication and Measurement of Liquid-Filled and Liquid-Crystal-Filled Photonic Crystal Fiber Devices.

Degree: PhD, Electro-Optical Engineering, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624113-144408

► As the photonic crystal fibers (PCFs) are fabricated, it is hard to modulate their optical properties to function as tunable optical devices. To introduce tunable… (more)

▼ As the photonic crystal fibers (PCFs) are fabricated, it is hard to modulate their optical properties to function as tunable optical devices. To introduce tunable optical properties into the PCFs, one can infiltrate tunable-index materials, such as liquid and liquid crystals (LCs), into the air holes of the PCFs to form tunable optical devices. In this dissertation, we employ liquid-filled PCFs and photoresponsive PLCFs to form novel tunable optical devices. First, we utilize a vacuum pumping machine to infiltrate two liquid sections into the PCFs. A novel Mach-Zehnder interferometer (MZI) with two liquid sections can be successfully fabricated. Unlike other PCF-based MZIs, no damage is made to the PCF structure during the fabrication of our proposed MZI structure. The experiment results show that very clear interference patterns can be obtained, and a extinction ration (ER) of -15 dB can be achieved at Î» = 1525 nm. Besides, the temperature and bending sensitivities of our fabricated PCF-based MZI are -176 nm/oC and 15.5 nm/m, respectively. As a result, our fabricated PCF-based MZIs can be utilized in temperature and bending sensing applications. We have also fabricated photoresponsive PLCFs by infiltrating a LC mixture consisting of E7 LCs and the photoresponsive 4MAB into PCFs. By seriesly connecting a photoresponsive PLCF and a PLCF filled with E7 LCs, an optically tunable bandpass filter can be realized. After 5-second blue-laser irradiation, the bandwidth variations of two pass bands are 115 nm and 110 nm, respectively, and the center wavelengths of the transmission bands are shifted about 48 nm and 43 nm. In addition, we dope the Ag NPs into the photoresponsive PLCFs to improve the response time. The measurement results show that the rise time and decay time can be reduced about 38% and 42%, respectively. Finally, a selective blocking technique is used to infiltrate the photoresponsive LC mixture into both-side air holes of the PCFs to from optically tunable PLCF attenuators. By irradiating a blue laser, a maximum attenuation tunability about -26 dB can be obtained at Î» = 1100 nm. Our fabricated optically tunable PLCF attenuators possess reversible properties by green-laser irradiation and can be applied in optical tunable devices. Advisors/Committee Members: Po-Jui Chiang (chair), Tsung-Hsien Lin (chair), Hung-wen Chang (chair), Nai-Hsiang Sun (chair), Chin-Ping Yu (committee member), Cheng-Wen Wu (chair), Wood-Hi Cheng (chair).

Subjects/Keywords: liquid crystal; photoresponsive azobenzene; nanoparticle; photonic crystal fibers; Mach-Zehnder interferometers

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APA (6^th Edition):

Liou, J. (2013). Fabrication and Measurement of Liquid-Filled and Liquid-Crystal-Filled Photonic Crystal Fiber Devices. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624113-144408

Chicago Manual of Style (16^th Edition):

Liou, Jia-hong. “Fabrication and Measurement of Liquid-Filled and Liquid-Crystal-Filled Photonic Crystal Fiber Devices.” 2013. Doctoral Dissertation, NSYSU. Accessed January 23, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624113-144408.

MLA Handbook (7^th Edition):

Liou, Jia-hong. “Fabrication and Measurement of Liquid-Filled and Liquid-Crystal-Filled Photonic Crystal Fiber Devices.” 2013. Web. 23 Jan 2021.

Vancouver:

Liou J. Fabrication and Measurement of Liquid-Filled and Liquid-Crystal-Filled Photonic Crystal Fiber Devices. [Internet] [Doctoral dissertation]. NSYSU; 2013. [cited 2021 Jan 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624113-144408.

Council of Science Editors:

Liou J. Fabrication and Measurement of Liquid-Filled and Liquid-Crystal-Filled Photonic Crystal Fiber Devices. [Doctoral Dissertation]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624113-144408

NSYSU

15. Yang, Hsiao-Ling. Bi-Interferometer Fiber Sensor Formed by Combining Fabry-PÃ©rot Fiber Interferometer and Mach-Zehnder Fiber Interferometer.

Degree: Master, Electro-Optical Engineering, 2015, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-113540

► Optical fibers have been widely applied in micro sensors in recent years due to they are sensitive to the variations of environment. Among all the… (more)

Subjects/Keywords: fiber sensor; Fabry-PÃ©rot interferometer; Mach-Zehnder interferometer; bi-interferometer

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APA (6^th Edition):

Yang, H. (2015). Bi-Interferometer Fiber Sensor Formed by Combining Fabry-PÃ©rot Fiber Interferometer and Mach-Zehnder Fiber Interferometer. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-113540

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yang, Hsiao-Ling. “Bi-Interferometer Fiber Sensor Formed by Combining Fabry-PÃ©rot Fiber Interferometer and Mach-Zehnder Fiber Interferometer.” 2015. Thesis, NSYSU. Accessed January 23, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-113540.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yang, Hsiao-Ling. “Bi-Interferometer Fiber Sensor Formed by Combining Fabry-PÃ©rot Fiber Interferometer and Mach-Zehnder Fiber Interferometer.” 2015. Web. 23 Jan 2021.

Vancouver:

Yang H. Bi-Interferometer Fiber Sensor Formed by Combining Fabry-PÃ©rot Fiber Interferometer and Mach-Zehnder Fiber Interferometer. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Jan 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-113540.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yang H. Bi-Interferometer Fiber Sensor Formed by Combining Fabry-PÃ©rot Fiber Interferometer and Mach-Zehnder Fiber Interferometer. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-113540

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Instituto Tecnológico de Aeronáutica

16. Braulio Fernando Ribeiro Sakamoto. Aplicação do interferômetro de Gires-Tournois em linearização de moduladores eletroópticos de intensidade.

Degree: 2006, Instituto Tecnológico de Aeronáutica

URL: http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=333

► Este trabalho apresenta um estudo analítico da aplicação do Interferômetro de Gires-Tournois (GTI, Gires-Tournois Interferometer) em linearização de moduladores eletroópticos de intensidade. Os dispositivos abordados… (more)

▼ Este trabalho apresenta um estudo analítico da aplicação do Interferômetro de Gires-Tournois (GTI, Gires-Tournois Interferometer) em linearização de moduladores eletroópticos de intensidade. Os dispositivos abordados consistem, basicamente, em Moduladores Interferométricos do tipo Mach-Zehnder (Mach-Zehnder Modulator, MZM) ou equivalentes, em cujas estruturas foram adicionadas os GTI, como técnica de linearização de sua característica de transmissão. Os moduladores assim obtidos apresentam configurações tais que utilizam estruturas de microondas a parâmetros concentrados, sendo os conceitos apresentados através do ponto de vista de óptica volumétrica. Serão abordados inicialmente os fundamentos de modulação eletroóptica, com ênfase no efeito eletroóptico, conhecimentos esses necessários ao entendimento do processo de modulação eletroóptica. Os moduladores de fase de parâmetros concentrados e parâmetros distribuídos são apresentados. Aborda-se também o modulador eletroóptico tipo Mach-Zehnder, convencionalmente empregado na maioria dos enlaces ópticos atuais e que servirá de referência na avaliação dos modulares com características de baixa distorção. Abordam-se as cavidades GTI em sua estrutura original, derivada do interferômetro de Fabry-Perot, para em seguida analisar seu emprego como modulador eletroóptico de fase, na situação em que a cavidade óptica é preenchida com material eletroopticamente ativo. O modulador linearizado de intensidade, empregando apenas uma célula GTI em versão birrefringente, é apresentada e analisada. Por fim, quantiza-se a distorção desta última configuração, através da determinação de sua faixa dinâmica livre de distorção, SFDR (Spur-Free Dynamic Range) e compara-se com o caso convencional empregando o MZM. Finalmente, são apresentadas as conclusões obtidas ao longo desta tese, bem como algumas sugestões de continuidade dos trabalhos nesta linha de pesquisa. Advisors/Committee Members: José Edimar Barbosa Oliveira.

Subjects/Keywords: Moduladores; Eletroóptica; Comunicação óptica; Interferômetros de Mach-Zehnder; Óptica; Física

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APA (6^th Edition):

Sakamoto, B. F. R. (2006). Aplicação do interferômetro de Gires-Tournois em linearização de moduladores eletroópticos de intensidade. (Thesis). Instituto Tecnológico de Aeronáutica. Retrieved from http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=333

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sakamoto, Braulio Fernando Ribeiro. “Aplicação do interferômetro de Gires-Tournois em linearização de moduladores eletroópticos de intensidade.” 2006. Thesis, Instituto Tecnológico de Aeronáutica. Accessed January 23, 2021. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=333.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sakamoto, Braulio Fernando Ribeiro. “Aplicação do interferômetro de Gires-Tournois em linearização de moduladores eletroópticos de intensidade.” 2006. Web. 23 Jan 2021.

Vancouver:

Sakamoto BFR. Aplicação do interferômetro de Gires-Tournois em linearização de moduladores eletroópticos de intensidade. [Internet] [Thesis]. Instituto Tecnológico de Aeronáutica; 2006. [cited 2021 Jan 23]. Available from: http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=333.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sakamoto BFR. Aplicação do interferômetro de Gires-Tournois em linearização de moduladores eletroópticos de intensidade. [Thesis]. Instituto Tecnológico de Aeronáutica; 2006. Available from: http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=333

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Mina, Alexandre Martin. Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder.

Degree: Mestrado, Microeletrônica, 2008, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-24092008-140132/ ;

►

Neste trabalho é realizado o estudo das etapas de fabricação de um dispositivo eletro-termo-óptico. O dispositivo baseia-se em um interferômetro Mach-Zehnder (IMZ) onde um micro-resistor… (more)

▼

Neste trabalho é realizado o estudo das etapas de fabricação de um dispositivo eletro-termo-óptico. O dispositivo baseia-se em um interferômetro Mach-Zehnder (IMZ) onde um micro-resistor é colocado em um dos braços do IMZ. Este interferômetro foi construído usando guias de onda ARROW (Anti-Resonant Reflecting Optical Waveguide) onde filmes de oxinitreto de silício e carbeto de silício amorfo hidrogenado foram utilizados como materiais constituintes. Estes materiais foram depositados pela técnica de PECVD (Plasma Enhanced Chemical Vapor Deposition) a baixas temperaturas (~300°C) usando silano (SiH4), nitrogênio (N2), hidrogênio (H2), oxido nitroso (N2O) e metano (CH4) como gases precursores. Para isolar termicamente a região de aquecimento do dispositivo, parte do braço sensor do IMZ foi suspenso através da corrosão superficial do substrato de silício em solução de hidróxido de potássio (KOH). Basicamente o dispositivo termo-eletroóptico utiliza para seu funcionamento o efeito termo-óptico dos materiais constituintes. Neste caso, com a aplicação de uma corrente elétrica no micro-resistor localizado em uma pequena região de um dos braços do IMZ é produzido uma variação na temperatura e no índice de refração dos filmes próximos ao microresistor. Com isto, o aparecimento de uma diferença de fase entre as ondas propagantes dos dois braços do IMZ é ocasionado e, como conseqüência, uma interferência eletromagnética dependente da diferença de fase das ondas propagantes causada pela variação de temperatura é originado. Dessa maneira, é possível fabricar um dispositivo termo-eletro-óptico onde uma variação da corrente aplicada no micro-resistor produz uma alteração da potência óptica na saída do interferômetro.

In this work, a study of the steps to fabricate an electro-thermo-optical device is realized. This device is based in a Mach-Zehnder interferometer (IMZ) where a micro-resistor is placed in one of the IMZ arms. The Mach-Zehnder interferometer was fabricated using Anti-Resonant Reflecting Optical Waveguide (ARROW) where oxinytride and amorphous hydrogenated silicon carbide films were used as constituent materials. These materials were deposited by PECVD (Plasma Enhanced Chemical Vapor Deposition) technique at low temperatures (~300°C) using silane (SiH4), nitrogen (N2), hydrogen (H2), nitrous oxide (N2O) and methane (CH4) as precursor gases. In order to isolate thermally the heating region of the structure, part of the IMZ sensor arm was suspended by the surface etching of the silicon substrate in KOH solution. Basically, the electro-thermo-optical device is based in the Thermo- Optic Effect of the constituent materials. In this case, with the application of an electrical current in the micro-resistor located in a small region of the sensor arm of the IMZ, a change in the temperature and in the refractive index of the films close to the micro-resistor is produced. So, a phase difference between the electromagnetic waves that travel by the two arms of the IMZ is produced and, as consequence, an electromagnetic…

Advisors/Committee Members: Alayo Chávez, Marco Isaías.

Subjects/Keywords: Integrated optic; Mach-Zehnder; Óptica; PECVD; Processos de microeletrônica; Sensor

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APA (6^th Edition):

Mina, A. M. (2008). Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3140/tde-24092008-140132/ ;

Chicago Manual of Style (16^th Edition):

Mina, Alexandre Martin. “Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder.” 2008. Masters Thesis, University of São Paulo. Accessed January 23, 2021. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-24092008-140132/ ;.

MLA Handbook (7^th Edition):

Mina, Alexandre Martin. “Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder.” 2008. Web. 23 Jan 2021.

Vancouver:

Mina AM. Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder. [Internet] [Masters thesis]. University of São Paulo; 2008. [cited 2021 Jan 23]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-24092008-140132/ ;.

Council of Science Editors:

Mina AM. Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder. [Masters Thesis]. University of São Paulo; 2008. Available from: http://www.teses.usp.br/teses/disponiveis/3/3140/tde-24092008-140132/ ;

University of Alberta

18. Sarkar, Dibyo. Development of an optical biosensor based on Mach-Zehnder Interferometry for detection of Listeria monocytogenes.

Degree: MS, Department of Mechanical Engineering, 2013, University of Alberta

URL: https://era.library.ualberta.ca/files/0g354g091

► Label-free optical biosensors are widely used for the detection of pathogens due to their low-cost, real-time detection and high sensitivity. A Mach-Zehnder Interferometer (MZI) based… (more)

Subjects/Keywords: Fabrication; Mach-Zehnder Interferometer; Biosensor; Listeria monocytogenes; Waveguide; Monomode

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APA (6^th Edition):

Sarkar, D. (2013). Development of an optical biosensor based on Mach-Zehnder Interferometry for detection of Listeria monocytogenes. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/0g354g091

Chicago Manual of Style (16^th Edition):

Sarkar, Dibyo. “Development of an optical biosensor based on Mach-Zehnder Interferometry for detection of Listeria monocytogenes.” 2013. Masters Thesis, University of Alberta. Accessed January 23, 2021. https://era.library.ualberta.ca/files/0g354g091.

MLA Handbook (7^th Edition):

Sarkar, Dibyo. “Development of an optical biosensor based on Mach-Zehnder Interferometry for detection of Listeria monocytogenes.” 2013. Web. 23 Jan 2021.

Vancouver:

Sarkar D. Development of an optical biosensor based on Mach-Zehnder Interferometry for detection of Listeria monocytogenes. [Internet] [Masters thesis]. University of Alberta; 2013. [cited 2021 Jan 23]. Available from: https://era.library.ualberta.ca/files/0g354g091.

Council of Science Editors:

Sarkar D. Development of an optical biosensor based on Mach-Zehnder Interferometry for detection of Listeria monocytogenes. [Masters Thesis]. University of Alberta; 2013. Available from: https://era.library.ualberta.ca/files/0g354g091

NSYSU

19. Lin, Kuan-Ting. Improved Fiber Sensor by Using a Double-MZI Structure.

Degree: Master, Electro-Optical Engineering, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717117-163854

► We propose a double-MZI fiber sensor made by offset fusing and overlap fusing. They can be used for environment sensing, including temperature, refractive index, and… (more)

Subjects/Keywords: single mode fiber; offset; taper; Mach-Zehnder interferometer; fiber sensor

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APA (6^th Edition):

Lin, K. (2017). Improved Fiber Sensor by Using a Double-MZI Structure. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717117-163854

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Kuan-Ting. “Improved Fiber Sensor by Using a Double-MZI Structure.” 2017. Thesis, NSYSU. Accessed January 23, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717117-163854.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Kuan-Ting. “Improved Fiber Sensor by Using a Double-MZI Structure.” 2017. Web. 23 Jan 2021.

Vancouver:

Lin K. Improved Fiber Sensor by Using a Double-MZI Structure. [Internet] [Thesis]. NSYSU; 2017. [cited 2021 Jan 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717117-163854.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin K. Improved Fiber Sensor by Using a Double-MZI Structure. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717117-163854

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

20. Gloutak, Dasha. Comparing Compressibility Effects in Turbulence at Various Mach Numbers.

Degree: M.S., Mechanical Engineering, Mechanical Engineering, 2018, Cornell University

URL: http://hdl.handle.net/1813/64908

► Compressibility effects in a high speed turbulent flow were examined experimentally within a novel pressure vessel equipment setup. The equipment was assembled, validated and utilized… (more)

Subjects/Keywords: Mach Number; Reynolds Number; Fluid Mechanics; Experimental; turbulence; compressible; energy spectra

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APA (6^th Edition):

Gloutak, D. (2018). Comparing Compressibility Effects in Turbulence at Various Mach Numbers. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/64908

Chicago Manual of Style (16^th Edition):

Gloutak, Dasha. “Comparing Compressibility Effects in Turbulence at Various Mach Numbers.” 2018. Masters Thesis, Cornell University. Accessed January 23, 2021. http://hdl.handle.net/1813/64908.

MLA Handbook (7^th Edition):

Gloutak, Dasha. “Comparing Compressibility Effects in Turbulence at Various Mach Numbers.” 2018. Web. 23 Jan 2021.

Vancouver:

Gloutak D. Comparing Compressibility Effects in Turbulence at Various Mach Numbers. [Internet] [Masters thesis]. Cornell University; 2018. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1813/64908.

Council of Science Editors:

Gloutak D. Comparing Compressibility Effects in Turbulence at Various Mach Numbers. [Masters Thesis]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/64908

Texas A&M University

21. Macik, Dwayne. Fabrication of Annealed Proton-Exchanged Waveguides Vertically Integrated with Chalcogenide Waveguides.

Degree: MS, Electrical Engineering, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11807

► A key factor in the vertical integration of optical waveguide devices is the uniformity of the surface across which the coupling takes place. This thesis… (more)

Subjects/Keywords: Optical Waveguides; Annealed Proton Exchange; Chalcogenide; Mach-Zehnder

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APA (6^th Edition):

Macik, D. (2012). Fabrication of Annealed Proton-Exchanged Waveguides Vertically Integrated with Chalcogenide Waveguides. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11807

Chicago Manual of Style (16^th Edition):

Macik, Dwayne. “Fabrication of Annealed Proton-Exchanged Waveguides Vertically Integrated with Chalcogenide Waveguides.” 2012. Masters Thesis, Texas A&M University. Accessed January 23, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11807.

MLA Handbook (7^th Edition):

Macik, Dwayne. “Fabrication of Annealed Proton-Exchanged Waveguides Vertically Integrated with Chalcogenide Waveguides.” 2012. Web. 23 Jan 2021.

Vancouver:

Macik D. Fabrication of Annealed Proton-Exchanged Waveguides Vertically Integrated with Chalcogenide Waveguides. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11807.

Council of Science Editors:

Macik D. Fabrication of Annealed Proton-Exchanged Waveguides Vertically Integrated with Chalcogenide Waveguides. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11807

Texas A&M University

22. Yu, Kunzhi. Integrated Circuit Design for Silicon Photonics Interconnects.

Degree: PhD, Electrical Engineering, 2018, Texas A&M University

URL: http://hdl.handle.net/1969.1/173593

► For next generation interconnects which implement in datacenter and high-performance computing system, silicon photonic interconnect provides a high bandwidth, low power efficiency solution. Optical interconnect… (more)

▼ For next generation interconnects which implement in datacenter and high-performance computing system, silicon photonic interconnect provides a high bandwidth, low power efficiency solution. Optical interconnect architectures based on microring resonator devices offer a low-area and energy-efficient approach to realize both high-speed modulation and high bandwidth density via wavelength division multiplexing. This paper presents a multi-channel hybrid-integrated photonic receiver based on microring drop filters and waveguide photodetectors implemented in a 130nm SOI process and high-speed optical front-ends designed in 65nm CMOS. When tested with a waveguide photodetector with 0.45A/W responsivity, the receiver achieves -8.0 dBm OMA sensitivity at a BER=10-12 with a jitter tolerance corner frequency near 20MHz and a per-channel power consumption of 17mW including amortized clocking power. In order to stabilize the microring drop filter resonance wavelength, a peak-detector-based thermal tuning loop is implemented with a 0.7nm range at 43μW/GHz efficiency. Mach–Zehnder-based modulator provides a high bandwidth, high linearity, good thermal insensitivity solution for silicon photonics transmitters design. This paper presents a 56Gbps PAM4/NRZ reconfigurable Si-photonics transmitter design which consists a 16nm FinFET CMOS transmitter flip-chip bonded to a 130nm SOI Mach–Zehnder modulator. The Mach–Zehnder modulator consists total 14 segmented phase shifter pairs which 5 segments works as LSB and 9 segments works as MSB in order to generate 4-level Pulse-Amplitude Modulation (PAM4) optical signal in optical domain combination. The CMOS transmitter implements 28 push-pull drivers to achieve dual arm, dual differential driving scheme and independently digital control delay lines to achieve delay match between optical and electrical signal propagation. The MZM transmitter achieves 7ps eye-width and 0.963 RLM at 56Gbps data rate. Advisors/Committee Members: Palermo, Samuel (advisor), Entesari, Karman (committee member), Madsen, Christi (committee member), Kim, Eun (committee member).

Subjects/Keywords: Silicon Photonics; Micro ring filter; Mach-Zehnder Modulator

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APA (6^th Edition):

Yu, K. (2018). Integrated Circuit Design for Silicon Photonics Interconnects. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/173593

Chicago Manual of Style (16^th Edition):

Yu, Kunzhi. “Integrated Circuit Design for Silicon Photonics Interconnects.” 2018. Doctoral Dissertation, Texas A&M University. Accessed January 23, 2021. http://hdl.handle.net/1969.1/173593.

MLA Handbook (7^th Edition):

Yu, Kunzhi. “Integrated Circuit Design for Silicon Photonics Interconnects.” 2018. Web. 23 Jan 2021.

Vancouver:

Yu K. Integrated Circuit Design for Silicon Photonics Interconnects. [Internet] [Doctoral dissertation]. Texas A&M University; 2018. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1969.1/173593.

Council of Science Editors:

Yu K. Integrated Circuit Design for Silicon Photonics Interconnects. [Doctoral Dissertation]. Texas A&M University; 2018. Available from: http://hdl.handle.net/1969.1/173593

North Carolina State University

23. Cai, Ailing. Wide Band Gap SemiconductorOptical Waveguide.

Degree: PhD, Electrical Engineering, 2006, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/3724

► This dissertation involves the design, fabrication and characterization of wide band gap semiconductor optical waveguide devices. Prism coupling was used as the primary characterization method… (more)

Subjects/Keywords: Waveguide; Mach-Zehnder interferometer; GaN

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APA (6^th Edition):

Cai, A. (2006). Wide Band Gap SemiconductorOptical Waveguide. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/3724

Chicago Manual of Style (16^th Edition):

Cai, Ailing. “Wide Band Gap SemiconductorOptical Waveguide.” 2006. Doctoral Dissertation, North Carolina State University. Accessed January 23, 2021. http://www.lib.ncsu.edu/resolver/1840.16/3724.

MLA Handbook (7^th Edition):

Cai, Ailing. “Wide Band Gap SemiconductorOptical Waveguide.” 2006. Web. 23 Jan 2021.

Vancouver:

Cai A. Wide Band Gap SemiconductorOptical Waveguide. [Internet] [Doctoral dissertation]. North Carolina State University; 2006. [cited 2021 Jan 23]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/3724.

Council of Science Editors:

Cai A. Wide Band Gap SemiconductorOptical Waveguide. [Doctoral Dissertation]. North Carolina State University; 2006. Available from: http://www.lib.ncsu.edu/resolver/1840.16/3724

Brno University of Technology

24. Bandzi, Michal. Zpětný překlad z vybraných formátů spustitelných souborů: Decompilation from Selected Object File Formats.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/62097

► Object files contain machine code that can be executed by processor unit. Structure of an object file is defined by its file format. In order… (more)

Subjects/Keywords: objektové súbory; binárne súbory; univerzálne binárne súbory; reverzné inžinierstvo; spätný preklad; spätný prekladač; Intel HEX; Portable Executable; PE; Mach-O; Mach-O Universal Binary; object files; binary files; universal binaries; reverse engineering; decompilation; decompiler; Intel HEX; Portable Executable; PE; Mach-O; Mach-O Universal Binary

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APA (6^th Edition):

Bandzi, M. (2019). Zpětný překlad z vybraných formátů spustitelných souborů: Decompilation from Selected Object File Formats. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/62097

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bandzi, Michal. “Zpětný překlad z vybraných formátů spustitelných souborů: Decompilation from Selected Object File Formats.” 2019. Thesis, Brno University of Technology. Accessed January 23, 2021. http://hdl.handle.net/11012/62097.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bandzi, Michal. “Zpětný překlad z vybraných formátů spustitelných souborů: Decompilation from Selected Object File Formats.” 2019. Web. 23 Jan 2021.

Vancouver:

Bandzi M. Zpětný překlad z vybraných formátů spustitelných souborů: Decompilation from Selected Object File Formats. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/11012/62097.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bandzi M. Zpětný překlad z vybraných formátů spustitelných souborů: Decompilation from Selected Object File Formats. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/62097

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ottawa

25. Xu, Yanping. Multi-Parameter Sensing Based On In-Line Mach-Zehnder Interferometer .

Degree: 2013, University of Ottawa

URL: http://hdl.handle.net/10393/26010

► Optical fiber sensors have been intensively studied and successfully employed in various human social activities and daily living, such as industrial production, civil engineering, medicine,… (more)

▼ Optical fiber sensors have been intensively studied and successfully employed in various human social activities and daily living, such as industrial production, civil engineering, medicine, transportation, national defense and so on. According to different structures, optical sensors could be divided into various categories. This thesis focuses on studying different kinds of in-line fiber Mach-Zehnder interferometers, which have played an important role among the optical interferometric fiber sensors. The structure composition, fabrication process, physical principle and practical applications of two novel in-line fiber Mach-Zehnder interferometers are proposed and discussed in detail in this work. The tapered bend-insensitive fiber Mach-Zehnder interferometer (BIF-MZI) is firstly fabricated and used as a fiber vibrometer. The unique double-cladding structure of bend-insensitive fiber not only provides higher mechanical strength to the sensor, but also guarantees a more uniform transmission spectrum， since only a few inner-cladding modes are left interfering with the core mode. A high sensitivity and fast response intensity demodulation scheme is employed by monitoring the power fluctuation of the BIF-MZI at the operation wavelength. Both damped and continuous vibrations are detected using the proposed sensor. It is demonstrated that this sensor responses to an extremely wide range of frequencies from 1 Hz up to 500 kHz with high signal-to-noise ratios (SNRs). The discrimination of temperature and axial strain is realized based on the dispersion effects of high-order-mode fiber (HOMF) by forming a single mode fiber-high-order-mode fiber-single mode fiber (SMF-HOMF-SMF) structure based in-line Mach-Zehnder interferometer. Unlike some kinds of in-line MZIs such as tapered and core–offset structures whose cladding modes are excited with different types under changing temperature and strain circumstances, the HOMF is capable of supporting three stable core modes, which guarantees a reliable and repeatable measurements within a large temperature or strain range. A new method based on the fast Fourier transform (FFT) is employed to analyze the mode couplings and their chromatic dispersion and intermodal dispersion properties in HOMF. The strong dispersion effects lead to a multi-peak feature in the spatial frequency spectrum. It is found that peaks that denote the waveform periods at positions that are beyond the critical wavelength possess highly sensitive and distinct phase responses to external disturbances, which provides the possibility to realize the discrimination measurements with high sensitivities and smaller errors by selecting appropriate peaks. The phase demodulation scheme is applied to quantify the temperature and strain changes in terms of phase shifts. Appropriate peak selections according to the practical needs would provide an easy access for applications where more than two parameters are required to be discriminated.

Subjects/Keywords: Optical fiber sensors; in-line fiber Mach-Zehnder interferometer

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Xu, Y. (2013). Multi-Parameter Sensing Based On In-Line Mach-Zehnder Interferometer . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/26010

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Xu, Yanping. “Multi-Parameter Sensing Based On In-Line Mach-Zehnder Interferometer .” 2013. Thesis, University of Ottawa. Accessed January 23, 2021. http://hdl.handle.net/10393/26010.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Xu, Yanping. “Multi-Parameter Sensing Based On In-Line Mach-Zehnder Interferometer .” 2013. Web. 23 Jan 2021.

Vancouver:

Xu Y. Multi-Parameter Sensing Based On In-Line Mach-Zehnder Interferometer . [Internet] [Thesis]. University of Ottawa; 2013. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10393/26010.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Xu Y. Multi-Parameter Sensing Based On In-Line Mach-Zehnder Interferometer . [Thesis]. University of Ottawa; 2013. Available from: http://hdl.handle.net/10393/26010

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ottawa

26. Mach, Philip. Bifurcating Mach Shock Reflections with Application to Detonation Structure .

Degree: 2011, University of Ottawa

URL: http://hdl.handle.net/10393/20182

► Numerical simulations of Mach shock reflections have shown that the Mach stem can bifurcate as a result of the slip line jetting forward. Numerical simulations… (more)

Subjects/Keywords: shock reflections; detonations; bifurcating Mach stems; numerical simulations; cellular regularity

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APA (6^th Edition):

Mach, P. (2011). Bifurcating Mach Shock Reflections with Application to Detonation Structure . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/20182

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mach, Philip. “Bifurcating Mach Shock Reflections with Application to Detonation Structure .” 2011. Thesis, University of Ottawa. Accessed January 23, 2021. http://hdl.handle.net/10393/20182.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mach, Philip. “Bifurcating Mach Shock Reflections with Application to Detonation Structure .” 2011. Web. 23 Jan 2021.

Vancouver:

Mach P. Bifurcating Mach Shock Reflections with Application to Detonation Structure . [Internet] [Thesis]. University of Ottawa; 2011. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10393/20182.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mach P. Bifurcating Mach Shock Reflections with Application to Detonation Structure . [Thesis]. University of Ottawa; 2011. Available from: http://hdl.handle.net/10393/20182

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Mihelish, Matthew Phillip. Heat Transfer, Transition, And Aerodynamic Loss In A Linear Vane Cascade At Low Reynolds Numbers In High Speed Flows.

Degree: MS, Mechanical Engineering, 2012, University of North Dakota

URL: https://commons.und.edu/theses/1259

► Low pressure turbine research is essential for improving the efficiency of the modern gas turbine engine. At high altitude cruise conditions, the low pressure… (more)

▼ Low pressure turbine research is essential for improving the efficiency of the modern gas turbine engine. At high altitude cruise conditions, the low pressure turbine experiences low Reynolds number flow, which produces a laminar boundary layer on airfoil surfaces. The integrity of the laminar boundary layer is highly susceptible to flow disturbances resulting from blade wakes and freestream turbulence. This susceptibility often leads to enhanced profile and secondary losses, which reduces turbine efficiency. Previous research conducted on low pressure turbine flow conditions, has investigated heat transfer, boundary layer separation bubbles, and secondary flows subjected to varying levels of freestream turbulence. This research is often conducted with low velocity wind tunnels, which are unable to produce engine relevant Mach numbers. Facilities that are able to produce engine relevant velocities are restricted to high Reynolds numbers and face difficulties acquiring well resolved flow data from restricted run times. Due to the limited abilities of current ground test facilities, new methodologies and facilities are needed to produce detailed heat transfer and flow loss data pertinent to the low pressure turbine operating conditions. The Mechanical Engineering Department at the University of North Dakota has designed and developed a new facility able to conduct low Reynolds number research at engine relevant velocities, which is applicable to low pressure turbines. The facility is comprised of a sealed, closed loop wind tunnel, which operates at steady state conditions. The facility is able to create flow conditions with a Reynolds number between 50,000 and 1,000,000 at Mach numbers up to 0.9. The work of this thesis documents, in detail, the low Reynolds number transonic facility and the research conducted within it. The research includes vane surface heat transfer and pressure distributions along with exit surveys acquired using a five-hole cone probe documenting total pressure loss, secondary velocity vectors, turning angle, and loss distributions over a range of Reynolds numbers between 90,000 and 720,000 at Mach numbers between 0.7 and 0.9 under low and aero-combustor turbulence conditions. The experimental results of this research indicate as Reynolds number decreases, secondary losses increase. In addition, for a given Reynolds number, secondary losses decrease as Mach number increases. Secondary loss structures such as the passage/horseshoe vortex weaken with enhanced turbulence but overall losses increase. Heat transfer measurements show a scaling factor on Stanton number as Reynolds number increases, which is augmented under aero-combustor turbulence. Advisors/Committee Members: Forrest Ames.

Subjects/Keywords: Aerodynamic Loss; Heat Transfer; Mach Number; Reynolds Numbers; Transition; Vane Cascade

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APA (6^th Edition):

Mihelish, M. P. (2012). Heat Transfer, Transition, And Aerodynamic Loss In A Linear Vane Cascade At Low Reynolds Numbers In High Speed Flows. (Masters Thesis). University of North Dakota. Retrieved from https://commons.und.edu/theses/1259

Chicago Manual of Style (16^th Edition):

Mihelish, Matthew Phillip. “Heat Transfer, Transition, And Aerodynamic Loss In A Linear Vane Cascade At Low Reynolds Numbers In High Speed Flows.” 2012. Masters Thesis, University of North Dakota. Accessed January 23, 2021. https://commons.und.edu/theses/1259.

MLA Handbook (7^th Edition):

Mihelish, Matthew Phillip. “Heat Transfer, Transition, And Aerodynamic Loss In A Linear Vane Cascade At Low Reynolds Numbers In High Speed Flows.” 2012. Web. 23 Jan 2021.

Vancouver:

Mihelish MP. Heat Transfer, Transition, And Aerodynamic Loss In A Linear Vane Cascade At Low Reynolds Numbers In High Speed Flows. [Internet] [Masters thesis]. University of North Dakota; 2012. [cited 2021 Jan 23]. Available from: https://commons.und.edu/theses/1259.

Council of Science Editors:

Mihelish MP. Heat Transfer, Transition, And Aerodynamic Loss In A Linear Vane Cascade At Low Reynolds Numbers In High Speed Flows. [Masters Thesis]. University of North Dakota; 2012. Available from: https://commons.und.edu/theses/1259

Delft University of Technology

28. Petković, Dimitrije (author). Plasma Actuators in Space-Based Systems.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:fed6509d-9b46-4220-a3dc-53dcd3ae7fbd

► Plasma actuators are fully electronic devices without any moving mechanical parts. Hence they have increased reliability and lower complexity when compared to conventional actuators used… (more)

▼ Plasma actuators are fully electronic devices without any moving mechanical parts. Hence they have increased reliability and lower complexity when compared to conventional actuators used for same purposes. Mobile components also contribute to increased vibrations, noise, loss of energy and they require lubrication. Non-thermal plasma actuators are highly efficient as they directly convert electrical into kinetic energy without use of any mechanical parts. Lack of mobile components in plasma actuators contribute to lower mass, meaning lower cost of spacecrafts. Another benefit related to use of these actuators is their short response time, which increases dynamical and control abilities of complete spacecraft. All the benefits just stated make this technology potentially very interesting for space-based applications. Presented thesis represents feasibility study, a first step required for application of plasma actuator on a spacecraft. This research examined two objectives. First was to study the effect of an altitude on momentum exchange between high velocity external flow and created ionic wind. Second objective was to investigate and design DBD plasma actuator able to withstand orbital thermal loads. This study consists of literature research on two most common plasma actuators; various aspects of launch, orbit and re-entry of spacecrafts; and two analytical models. First model aims in estimating the influence of an altitude on the actuator force creation, which can be used for shock stand-off distance modification, and thus steering applications. Other model aims in estimating actuator thermal loads occurring due to spacecraft orbit in Low Earth Orbit. Results show that altitude has large effect on actuator force production. Analytical model shows an average reduction of 4.51 or 4.44 times per 10 km, depending on actuator’s orientation with respect to external flow. Difficulties relating high velocity flow fields such as molecular dissociation and very high friction heat loads are presented. Results show that DBD actuator system can produced significant perturbations between spacecraft surface and natural shockwave. Made perturbations are in form of a compression wave that interacts with natural shock wave and creates a dis-balance of forces proficient for spacecraft reentry steering. Second analytical model shows that there exist actuator materials which can withstand thermal loads due to spacecraft orbital Sun exposure. This thesis shows a promising first order results needed to qualify and apply DBD actuator on spacecraft. However much research on optimization and design are still required. Advisors/Committee Members: Sundaramoorthy, Prem (mentor), Cervone, Angelo (graduation committee), Balbino Dos Santos Pereira, Ricardo (graduation committee), Kotsonis, Marios (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: DBD; Plasma actuators; Space-based; High Mach number; Low pressure

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Petković, D. (. (2017). Plasma Actuators in Space-Based Systems. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:fed6509d-9b46-4220-a3dc-53dcd3ae7fbd

Chicago Manual of Style (16^th Edition):

Petković, Dimitrije (author). “Plasma Actuators in Space-Based Systems.” 2017. Masters Thesis, Delft University of Technology. Accessed January 23, 2021. http://resolver.tudelft.nl/uuid:fed6509d-9b46-4220-a3dc-53dcd3ae7fbd.

MLA Handbook (7^th Edition):

Petković, Dimitrije (author). “Plasma Actuators in Space-Based Systems.” 2017. Web. 23 Jan 2021.

Vancouver:

Petković D(. Plasma Actuators in Space-Based Systems. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 23]. Available from: http://resolver.tudelft.nl/uuid:fed6509d-9b46-4220-a3dc-53dcd3ae7fbd.

Council of Science Editors:

Petković D(. Plasma Actuators in Space-Based Systems. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:fed6509d-9b46-4220-a3dc-53dcd3ae7fbd

University of Victoria

29. Ahsani, Vahid. Design and analysis of fiber-optic Mach-Zehnder interferometers for highly sensitive refractive index measurement.

Degree: Department of Mechanical Engineering, 2020, University of Victoria

URL: http://hdl.handle.net/1828/11724

► The development of reliable, affordable, and efficient sensors is a key step forward in providing tools for efficient monitoring of critical environmental parameters. Fiber-optic sensors… (more)

▼ The development of reliable, affordable, and efficient sensors is a key step forward in providing tools for efficient monitoring of critical environmental parameters. Fiber-optic sensors are already widely used in various industrial sensing fields. They have proven themselves reliable in harsh environments and can measure different physical quantities, such as temperature, pressure, strain, refractive index (RI), and humidity. Fiber-optic Mach-Zehnder Interferometer (MZI) is a well-studied optical fiber interferometer that has proven capacity for sensing ambient refractive index. In this dissertation, we present Fiber Bragg grating (FBG) embedded in a microfiber Mach-Zehnder Interferometer designed for sensing temperature and refractive index. The MZI is constructed by splicing a short length of 40-μm-diameter microfiber between standard single mode fibers. A one-millimeter-long FBG is then written in the microfiber using a direct, point-by-point, ultrafast laser inscription method. The microfiber MZI shows only moderate sensitivity to ambient refractive index and temperature changes. In contrast, the microfiber FBG is insensitive to ambient refractive index change, while it exhibits typical sensitivity to temperature variation. These distinct characteristics of the FBG and MZI sensors enable the simultaneous measurement of refractive index and temperature as well as temperature compensation in ambient refractive index measurement. Further, we report the use of a fiber-optic Mach-Zehnder Interferometer to measure core refractive index changes written by femtosecond laser irradiation. The core-offset interferometer was constructed by splicing a lightly misaligned stub of standard single-mode fiber between the device’s lead-in and lead-out optical fibers. When the core refractive index of an in-fiber interferometer is altered, that process changes the phase of the core light. Since the phase of light propagating in the cladding (reference arm) remains unchanged, the transmission fringe pattern of the interferometer undergoes a spectral shift. In the present research, that spectral shift was used to quantify the effective core refractive index change in a standard single-mode fiber. In addition, we designed and developed a custom flame-based tapering machine that is used to fabricate miniaturized Mach–Zehnder interferometers (MZIs) using sharply tapered photonic crystal fiber (PCF). This technique produces sensors capable of highly sensitive ambient refractive index (RI) measurements. The sensor is fabricated by fusion splicing a small stub of PCF between standard single-mode fibers with fully collapsed air holes of the PCF in a splicing region. Tiny flame geometry enables the sharp tapering of the PCF, resulting in a short fiber length and high RI sensitivity. It appears that sharp tapering has a great impact on RI sensitivity enhancement, when compared with methods that decrease taper waist diameter. The tapering technique is further used to construct the Mach-Zehnder Interferometer-based fiber-optic refractive… Advisors/Committee Members: Bradley, Colin (supervisor).

Subjects/Keywords: Mach-Zehnder Interferometers; Tapering; Fiberoptic Sensor; Refractive Index Measurement

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ahsani, V. (2020). Design and analysis of fiber-optic Mach-Zehnder interferometers for highly sensitive refractive index measurement. (Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/11724

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ahsani, Vahid. “Design and analysis of fiber-optic Mach-Zehnder interferometers for highly sensitive refractive index measurement.” 2020. Thesis, University of Victoria. Accessed January 23, 2021. http://hdl.handle.net/1828/11724.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ahsani, Vahid. “Design and analysis of fiber-optic Mach-Zehnder interferometers for highly sensitive refractive index measurement.” 2020. Web. 23 Jan 2021.

Vancouver:

Ahsani V. Design and analysis of fiber-optic Mach-Zehnder interferometers for highly sensitive refractive index measurement. [Internet] [Thesis]. University of Victoria; 2020. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1828/11724.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ahsani V. Design and analysis of fiber-optic Mach-Zehnder interferometers for highly sensitive refractive index measurement. [Thesis]. University of Victoria; 2020. Available from: http://hdl.handle.net/1828/11724

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria

30. Walker, David Keith. Study of two-dimensional shock tube flows by following particle trajectories using a multiply pulsed laser schlieren system.

Degree: Department of Physics and Astronomy, 2014, University of Victoria

URL: http://hdl.handle.net/1828/5202

► A system for recording the trajectories of non-planar shocks and particle tracers within a shock tube flow has been developed. The optics consists of a… (more)

Subjects/Keywords: two-dimensional; shock tube; particle trajectory; schlieren; laser; Mach reflection

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Walker, D. K. (2014). Study of two-dimensional shock tube flows by following particle trajectories using a multiply pulsed laser schlieren system. (Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/5202

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Walker, David Keith. “Study of two-dimensional shock tube flows by following particle trajectories using a multiply pulsed laser schlieren system.” 2014. Thesis, University of Victoria. Accessed January 23, 2021. http://hdl.handle.net/1828/5202.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Walker, David Keith. “Study of two-dimensional shock tube flows by following particle trajectories using a multiply pulsed laser schlieren system.” 2014. Web. 23 Jan 2021.

Vancouver:

Walker DK. Study of two-dimensional shock tube flows by following particle trajectories using a multiply pulsed laser schlieren system. [Internet] [Thesis]. University of Victoria; 2014. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1828/5202.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Walker DK. Study of two-dimensional shock tube flows by following particle trajectories using a multiply pulsed laser schlieren system. [Thesis]. University of Victoria; 2014. Available from: http://hdl.handle.net/1828/5202

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations