subject:( Intracavity optical parametric oscillator)

Cornell University

1. Pei, Hanzhang. All-Fiber Optical Parametric Oscillator For Coherent Raman Imaging.

Degree: M.S., Applied Physics, Applied Physics, 2015, Cornell University

► Optical parametric oscillator (OPO) is a kind of light source similar to a laser but based on parametric gain from amplification in a nonlinear medium… (more)

Subjects/Keywords: fiber optical parametric oscillator; coherent Raman imaging

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APA (6^th Edition):

Pei, H. (2015). All-Fiber Optical Parametric Oscillator For Coherent Raman Imaging. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/40641

Chicago Manual of Style (16^th Edition):

Pei, Hanzhang. “All-Fiber Optical Parametric Oscillator For Coherent Raman Imaging.” 2015. Masters Thesis, Cornell University. Accessed January 20, 2021. http://hdl.handle.net/1813/40641.

MLA Handbook (7^th Edition):

Pei, Hanzhang. “All-Fiber Optical Parametric Oscillator For Coherent Raman Imaging.” 2015. Web. 20 Jan 2021.

Vancouver:

Pei H. All-Fiber Optical Parametric Oscillator For Coherent Raman Imaging. [Internet] [Masters thesis]. Cornell University; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1813/40641.

Council of Science Editors:

Pei H. All-Fiber Optical Parametric Oscillator For Coherent Raman Imaging. [Masters Thesis]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/40641

Cornell University

2. D'Alberto, Tiffanie. MEASUREMENT SYSTEM FOR ULTRA-FAST PHENOMENA CONTAINED IN SLOW RELAXATION PROCESSES.

Degree: 2006, Cornell University

URL: http://hdl.handle.net/1813/3385

► Ultra-fast transitions buried within long recovery times are difficult to measure and study directly. As an example, consider the spectroscopic measurement of a non-radiative upper… (more)

Subjects/Keywords: optical parametric oscillator; Cr4+:YAG

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APA (6^th Edition):

D'Alberto, T. (2006). MEASUREMENT SYSTEM FOR ULTRA-FAST PHENOMENA CONTAINED IN SLOW RELAXATION PROCESSES. (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/3385

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):

D'Alberto, Tiffanie. “MEASUREMENT SYSTEM FOR ULTRA-FAST PHENOMENA CONTAINED IN SLOW RELAXATION PROCESSES.” 2006. Thesis, Cornell University. Accessed January 20, 2021. http://hdl.handle.net/1813/3385.

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

MLA Handbook (7^th Edition):

D'Alberto, Tiffanie. “MEASUREMENT SYSTEM FOR ULTRA-FAST PHENOMENA CONTAINED IN SLOW RELAXATION PROCESSES.” 2006. Web. 20 Jan 2021.

Vancouver:

D'Alberto T. MEASUREMENT SYSTEM FOR ULTRA-FAST PHENOMENA CONTAINED IN SLOW RELAXATION PROCESSES. [Internet] [Thesis]. Cornell University; 2006. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1813/3385.

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

Council of Science Editors:

D'Alberto T. MEASUREMENT SYSTEM FOR ULTRA-FAST PHENOMENA CONTAINED IN SLOW RELAXATION PROCESSES. [Thesis]. Cornell University; 2006. Available from: http://hdl.handle.net/1813/3385

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

3. Jornod, Nayara. Semiconductor disk laser-based frequency combs.

Degree: 2018, Université de Neuchâtel

URL: http://doc.rero.ch/record/323754

► Cette thèse présente une étude des premiers peignes de fréquences auto-référencés basés sur des lasers à disques semi-conducteurs (SDLs) à modes verrouillés en phase. L’avènement… (more)

▼ Cette thèse présente une étude des premiers peignes de fréquences auto-référencés basés sur des lasers à disques semi-conducteurs (SDLs) à modes verrouillés en phase. L’avènement des peignes de fréquences stabilisés basés sur des lasers à impulsions ultra-courtes a permis une avancée significative et de nombreuses applications dans divers domaines de la physique, de la spectroscopie et de la métrologie. Les peignes de fréquences optiques peuvent être utilisés comme une règle de mesure dans le domaine des fréquences fournissant un lien direct et cohérent entre les fréquences optiques et micro-ondes. Bien que les peignes de fréquences optiques aient révolutionné de nombreux domaines scientifiques, ils n'ont pas encore pénétré les marchés à grande échelle. Pour cela, les sources laser doivent être améliorées, en ciblant une haute fiabilité tout en gardant la source compacte et économiquement attractive. Les SDLs à impulsions ultra-courtes, également appelés lasers à cavité verticale externe à émission de surface ou VECSELs (de l’anglais vertical external-cavity surface-emitting lasers), constituent une source laser très prometteuse à cet égard de par la technologie des semi-conducteurs qui permet une production de masse à faible coût. Ils rendent possibles des configurations de lasers très compactes et présentent une grande flexibilité dans leur longueur d'onde d’émission grâce à l'ingénierie de bandes. En outre, ils ne souffrent pas d'instabilités de mode déclenché (Q-switching) et un fonctionnement stable en verrouillage de mode a été démontré à des taux de répétition allant de 100 MHz à 100 GHz. Les peignes de fréquences à taux de répétition élevés ont une puissance accrue par mode, ce qui est bénéfique pour des applications telles que l'astronomie ou la génération de signaux micro-ondes à faible bruit. La stabilisation des deux degrés de liberté du laser à verrouillage de mode, la fréquence de répétition et la fréquence du décalage de phase entre la porteuse et l'enveloppe (carrier-envelope offset en anglais, CEO) est nécessaire pour la plupart des applications. Cependant, la détection de la fréquence CEO est difficile et aucune stabilisation n'avait été obtenue auparavant pour un laser à semi-conducteur à impulsions ultra-courtes. La détection de la fréquence CEO est généralement effectuée à l'aide d'une méthode d'auto-référencement qui nécessite un spectre cohérent couvrant une octave de fréquence. Ce dernier peut être généré en utilisant des fibres optiques hautement non linéaires telles que des fibres à cristaux photoniques (photonic crystal fibers en anglais, PCFs). Afin de maintenir la cohérence durant le processus d'élargissement spectral, des impulsions ultra-courtes dans le domaine des femtosecondes (typiquement <200 fs) avec une puissance de crête de l’ordre du kilowatt sont nécessaires. Cependant, même si des puissances maximales allant jusqu'à 6.3 kW et des durées d'impulsion allant jusqu'à 96 fs ont été démontrées pour des SDLs, la combinaison des deux n'a pas… Advisors/Committee Members: Thomas (Dir.).

Subjects/Keywords: optical parametric oscillator (OPO)

…frequency combs. Finally, wavelength conversion in an optical parametric oscillator is studied to… …88 xii 5.2 Ultrafast optical parametric oscillator pumped by a vertical externalcavity… …coupler OPO optical parametric oscillator xvi PCF photonic crystal fiber PI proportional… …and T. Südmeyer, “Ultrafast optical parametric oscillator pumped by a vertical external… …an optical parametric oscillator," Opt. Express 24, 8370-8381 (2016)…

10 more images…

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APA (6^th Edition):

Jornod, N. (2018). Semiconductor disk laser-based frequency combs. (Thesis). Université de Neuchâtel. Retrieved from http://doc.rero.ch/record/323754

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):

Jornod, Nayara. “Semiconductor disk laser-based frequency combs.” 2018. Thesis, Université de Neuchâtel. Accessed January 20, 2021. http://doc.rero.ch/record/323754.

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

MLA Handbook (7^th Edition):

Jornod, Nayara. “Semiconductor disk laser-based frequency combs.” 2018. Web. 20 Jan 2021.

Vancouver:

Jornod N. Semiconductor disk laser-based frequency combs. [Internet] [Thesis]. Université de Neuchâtel; 2018. [cited 2021 Jan 20]. Available from: http://doc.rero.ch/record/323754.

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

Council of Science Editors:

Jornod N. Semiconductor disk laser-based frequency combs. [Thesis]. Université de Neuchâtel; 2018. Available from: http://doc.rero.ch/record/323754

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

Australian National University

4. Vu, K. Sodium line guide star laser using optical parametric oscillator .

Degree: 2003, Australian National University

URL: http://hdl.handle.net/1885/41345

► The aim of this project is to develop a novel, high average power source of highly coherent radiation at the 589nm sodium D2 resonance line… (more)

Subjects/Keywords: Optical parametric oscillator; Guide star

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APA (6^th Edition):

Vu, K. (2003). Sodium line guide star laser using optical parametric oscillator . (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/41345

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):

Vu, K. “Sodium line guide star laser using optical parametric oscillator .” 2003. Thesis, Australian National University. Accessed January 20, 2021. http://hdl.handle.net/1885/41345.

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

MLA Handbook (7^th Edition):

Vu, K. “Sodium line guide star laser using optical parametric oscillator .” 2003. Web. 20 Jan 2021.

Vancouver:

Vu K. Sodium line guide star laser using optical parametric oscillator . [Internet] [Thesis]. Australian National University; 2003. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1885/41345.

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

Council of Science Editors:

Vu K. Sodium line guide star laser using optical parametric oscillator . [Thesis]. Australian National University; 2003. Available from: http://hdl.handle.net/1885/41345

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

University of St. Andrews

5. Thomson, Caroline L. Study of phase-matching geometries in bulk and periodically-poled lithium niobate and their use in intracavity terahertz optical parametric oscillators .

Degree: 2012, University of St. Andrews

URL: http://hdl.handle.net/10023/3024

► This thesis describes the experimental implementation of novel intersecting cavity terahertz optical parametric oscillators based on bulk and periodically-poled magnesium oxide-doped lithium niobate. Both collinear… (more)

▼ This thesis describes the experimental implementation of novel intersecting cavity terahertz optical parametric oscillators based on bulk and periodically-poled magnesium oxide-doped lithium niobate. Both collinear and non-collinear phase-matching geometries have been demonstrated and injection-seeding has been implemented in devices using periodically-poled material to reduce threshold and increase the down-conversion efficiency. A comprehensive characterisation of the original intracavity terahertz OPO was undertaken, which revealed the parameters having the greatest impact on OPO efficiency (idler mirror reflectivity and cavity length) and led to a better understanding of the losses in the system. During the characterisation process, generation of further terahertz radiation at the same frequency as that generated by the parametric process was observed and identified as being a result of difference frequency generation (DFG) between the parametrically-generated idler and terahertz waves. This phenomenon had previously only been observed when periodically-poled materials were employed in the system. The effect of this additional DFG process has been analysed in terms of the enhancement of the terahertz field on the basis of the coupled wave equations and physically measured quantities. The use of periodically-poled lithium niobate has been a major part of the research presented in this thesis. A comprehensive study of the modified phase-matching conditions was carried out and both collinear and novel hybrid non-collinear phase-matching geometries were identified. Several computer models were developed to assess the performance of any given grating design in these different geometries and the effects of temperature tuning and pump wavelength variation were also investigated using the models. Experimental studies confirmed the viability of the modelling approach but material limitations (particularly the early onset of crystal damage) limited the outcomes of the experiments. A detailed comparison of the poled and bulk materials was made to highlight the present drawbacks of the poled material. Finally, injection seeding was used to improve the efficiency of the collinear phase-matched PPLN OPOs. When seeding was used the depletion of the pump pulse was increased to the point of being measurable, reaching an upper level of 10%. Coupling constraints placed on the seed laser limited the amount of depletion attained. The potential for injection seeding to be used in the hybrid non-collinear phase-matching scheme was also identified but not realised during the course of this work. Were this technique successful, the tuning range of the intersecting cavity terahertz OPO could be extended to encompass the sub-1THz region, something that has previously been limited by the available idler cavity angles. Advisors/Committee Members: Dunn, Malcolm H (advisor).

Subjects/Keywords: Terahertz; Optical parametric oscillator; PPLN; Injection seeding; Phase-matching

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APA (6^th Edition):

Thomson, C. L. (2012). Study of phase-matching geometries in bulk and periodically-poled lithium niobate and their use in intracavity terahertz optical parametric oscillators . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/3024

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):

Thomson, Caroline L. “Study of phase-matching geometries in bulk and periodically-poled lithium niobate and their use in intracavity terahertz optical parametric oscillators .” 2012. Thesis, University of St. Andrews. Accessed January 20, 2021. http://hdl.handle.net/10023/3024.

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

MLA Handbook (7^th Edition):

Thomson, Caroline L. “Study of phase-matching geometries in bulk and periodically-poled lithium niobate and their use in intracavity terahertz optical parametric oscillators .” 2012. Web. 20 Jan 2021.

Vancouver:

Thomson CL. Study of phase-matching geometries in bulk and periodically-poled lithium niobate and their use in intracavity terahertz optical parametric oscillators . [Internet] [Thesis]. University of St. Andrews; 2012. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10023/3024.

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

Council of Science Editors:

Thomson CL. Study of phase-matching geometries in bulk and periodically-poled lithium niobate and their use in intracavity terahertz optical parametric oscillators . [Thesis]. University of St. Andrews; 2012. Available from: http://hdl.handle.net/10023/3024

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

University of Arizona

6. Noble, Jeffrey Scott. Laser Gyroscope based on Synchronously Pumped Bidirectional Fiber Optical Parametric Oscillator .

Degree: 2017, University of Arizona

URL: http://hdl.handle.net/10150/625701

► This master thesis presents an experimental design of a laser gyroscope based on a stabilized fiber optical parametric oscillator frequency comb and the results of… (more)

Subjects/Keywords: Bidirectional; Gyroscope; Mode-Locked Laser; Optical Parametric Oscillator

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APA (6^th Edition):

Noble, J. S. (2017). Laser Gyroscope based on Synchronously Pumped Bidirectional Fiber Optical Parametric Oscillator . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/625701

Chicago Manual of Style (16^th Edition):

Noble, Jeffrey Scott. “Laser Gyroscope based on Synchronously Pumped Bidirectional Fiber Optical Parametric Oscillator .” 2017. Masters Thesis, University of Arizona. Accessed January 20, 2021. http://hdl.handle.net/10150/625701.

MLA Handbook (7^th Edition):

Noble, Jeffrey Scott. “Laser Gyroscope based on Synchronously Pumped Bidirectional Fiber Optical Parametric Oscillator .” 2017. Web. 20 Jan 2021.

Vancouver:

Noble JS. Laser Gyroscope based on Synchronously Pumped Bidirectional Fiber Optical Parametric Oscillator . [Internet] [Masters thesis]. University of Arizona; 2017. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10150/625701.

Council of Science Editors:

Noble JS. Laser Gyroscope based on Synchronously Pumped Bidirectional Fiber Optical Parametric Oscillator . [Masters Thesis]. University of Arizona; 2017. Available from: http://hdl.handle.net/10150/625701

7. Andrade, Rayssa Bruzaca de. Construção de um oscilador paramétrico ótico para uma interface átomo-luz.

Degree: Mestrado, Física, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26092014-100545/ ;

►

Realizamos neste trabalho a construção de um Oscilador Paramétrico Ótico triplamente ressonante bombeado por um laser de Titânio Safira sintonizável na faixa entre 730 nm… (more)

Subjects/Keywords: Àtomos de Rubídio.; Emaranhamento; Entanglement; Optical Parametric Oscillator; Oscilador Paramétrico Óptico; Rubidium Atoms

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APA (6^th Edition):

Andrade, R. B. d. (2013). Construção de um oscilador paramétrico ótico para uma interface átomo-luz. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26092014-100545/ ;

Chicago Manual of Style (16^th Edition):

Andrade, Rayssa Bruzaca de. “Construção de um oscilador paramétrico ótico para uma interface átomo-luz.” 2013. Masters Thesis, University of São Paulo. Accessed January 20, 2021. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26092014-100545/ ;.

MLA Handbook (7^th Edition):

Andrade, Rayssa Bruzaca de. “Construção de um oscilador paramétrico ótico para uma interface átomo-luz.” 2013. Web. 20 Jan 2021.

Vancouver:

Andrade RBd. Construção de um oscilador paramétrico ótico para uma interface átomo-luz. [Internet] [Masters thesis]. University of São Paulo; 2013. [cited 2021 Jan 20]. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26092014-100545/ ;.

Council of Science Editors:

Andrade RBd. Construção de um oscilador paramétrico ótico para uma interface átomo-luz. [Masters Thesis]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26092014-100545/ ;

8. C. Porto. GENERATION AND DETECTION OF NONCLASSICAL STATES IN THE CONTINUOUS VARIABLE REGIME.

Degree: 2018, Università degli Studi di Milano

URL: http://hdl.handle.net/2434/546878

► Squeezed states of light addressed in this Thesis have proved to be the most readily accessible optical fields with demonstrably quantum mechanical behaviour in the… (more)

Subjects/Keywords: The Squeezed States; Homodyne detection; Optical parametric oscillator; Settore FIS/01 - Fisica Sperimentale

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APA (6^th Edition):

Porto, C. (2018). GENERATION AND DETECTION OF NONCLASSICAL STATES IN THE CONTINUOUS VARIABLE REGIME. (Thesis). Università degli Studi di Milano. Retrieved from http://hdl.handle.net/2434/546878

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):

Porto, C.. “GENERATION AND DETECTION OF NONCLASSICAL STATES IN THE CONTINUOUS VARIABLE REGIME.” 2018. Thesis, Università degli Studi di Milano. Accessed January 20, 2021. http://hdl.handle.net/2434/546878.

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

MLA Handbook (7^th Edition):

Porto, C.. “GENERATION AND DETECTION OF NONCLASSICAL STATES IN THE CONTINUOUS VARIABLE REGIME.” 2018. Web. 20 Jan 2021.

Vancouver:

Porto C. GENERATION AND DETECTION OF NONCLASSICAL STATES IN THE CONTINUOUS VARIABLE REGIME. [Internet] [Thesis]. Università degli Studi di Milano; 2018. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2434/546878.

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

Council of Science Editors:

Porto C. GENERATION AND DETECTION OF NONCLASSICAL STATES IN THE CONTINUOUS VARIABLE REGIME. [Thesis]. Università degli Studi di Milano; 2018. Available from: http://hdl.handle.net/2434/546878

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

University of Arizona

9. Ou, Yi-Hsin. Fiber Based Light Sources Development for Spectroscopy and Microscopy Applications .

Degree: 2020, University of Arizona

URL: http://hdl.handle.net/10150/648646

► Ultrafast laser technology has become an important tool to push the edge of scientific knowledge and industrial applications. Many ultrafast lasers have been developed and… (more)

▼ Ultrafast laser technology has become an important tool to push the edge of scientific knowledge and industrial applications. Many ultrafast lasers have been developed and successfully used in research and in industry. Currently, Ti:sapphire solid state lasers could be the most important and widespread apparatus to begin with. However, having an ultrafast laser source with a compact size, stable performance, alignment- and maintenance-free becomes a desirable feature for scientists and industrial developers, especially for the applications in advanced spectroscopy and microscopy. In these ultrafast laser applications, system movability becomes a challenge since a spectroscopy or microscopy setup is supposed to be able to move to where the sample of interest is located. This practical requirement makes femtosecond fiber lasers the best candidate. In this dissertation, we have developed three ultrafast fiber laser sources for a variety of spectroscopy and microscopy applications. The first source is a free-running compact ultra-broadband fiber laser for dual-comb spectroscopy (DCS). We start from a free-running bidirectional mode-locked fiber laser (FRBML) delivering two outputs, in clockwise and counter-clockwise directions, near 1550 nm. The two outputs exhibit mutual coherence since they are generated from a single laser cavity. They also have a slight difference in repetition rate, which provides the required mechanism for DCS. This laser design concept has been proven working by HCN absorption measurements which was reported in the past by our group. The wavelength coverage of this source is then extended here for broader detection ability. A piece of highly-nonlinear fiber was used for supercontinuum (SC) generation in each output arm of the FRBML. This mutually coherent SC light sources cover a wavelength range from 1 μm to 2 μm. The water vapor absorption resonances in the range from 1380 nm to 1850 nm measured with this newly developed source show good agreements with the HITRAN data. Wavelength extension for this free-running DCS source has also been done by using an all-fiber bidirectional optical parametric oscillator (FOPO). This FOPO delivers two outputs with a tuning rage from 1600 nm to 1650 nm. Single-shot DCS measurements performed with the source and a CH4 gas cell indicate good absorption frequency accuracy when comparing to the HITRAN data. The second source is related to another application of the FRBML in terahertz time-domain spectroscopy (THz-TDS). The amplified FRBML outputs (mentioned above) are used as the excitation source on a pair of terahertz emitter and receiver. The repetition rate difference of the outputs naturally provides the constant time-delay of the optical sampling during the measurement. The terahertz wave generated from an advanced plasmonic enhanced terahertz emitter is from 0.1 to 1.5 THz. The generated terahertz wave has been demonstrated to be useful in high signal-to-noise ratio free-running THz-TDS. This trigger-free, free-running THz-TDS performance was characterized… Advisors/Committee Members: Kieu, Khanh KK (advisor), Jones, Roland RJJ (committeemember), Behunin, Ryan RB (committeemember).

Subjects/Keywords: chirped pulse amplification; dual-comb spectroscopy; free-running; optical parametric oscillator; terahertz; time domain spectroscopy

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APA (6^th Edition):

Ou, Y. (2020). Fiber Based Light Sources Development for Spectroscopy and Microscopy Applications . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/648646

Chicago Manual of Style (16^th Edition):

Ou, Yi-Hsin. “Fiber Based Light Sources Development for Spectroscopy and Microscopy Applications .” 2020. Doctoral Dissertation, University of Arizona. Accessed January 20, 2021. http://hdl.handle.net/10150/648646.

MLA Handbook (7^th Edition):

Ou, Yi-Hsin. “Fiber Based Light Sources Development for Spectroscopy and Microscopy Applications .” 2020. Web. 20 Jan 2021.

Vancouver:

Ou Y. Fiber Based Light Sources Development for Spectroscopy and Microscopy Applications . [Internet] [Doctoral dissertation]. University of Arizona; 2020. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10150/648646.

Council of Science Editors:

Ou Y. Fiber Based Light Sources Development for Spectroscopy and Microscopy Applications . [Doctoral Dissertation]. University of Arizona; 2020. Available from: http://hdl.handle.net/10150/648646

University of St. Andrews

10. Ross, Mark. An embedded control and display system for a laser-based mid-infrared hyperspectral imager .

Degree: 2009, University of St. Andrews

URL: http://hdl.handle.net/10023/731

► Back-scatter absorption gas imaging (BAGI) is a powerful laser-based detection technique whereby the strong spectroscopic absorption features in the gaseous species of interest are exploited… (more)

Subjects/Keywords: Embedded control oscillators; Mid-infrared; Methane; Parametric process; Intracavity optical parametric oscillator; Q switch; Constant current supply; Graphic lcd controller; Graphic LCD panel; Passive matrix; Active matrix; Stepper motor control; Galvanometer; Laser management system; Temperature tuning; Nonlinear crystal; PID control

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APA (6^th Edition):

Ross, M. (2009). An embedded control and display system for a laser-based mid-infrared hyperspectral imager . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/731

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):

Ross, Mark. “An embedded control and display system for a laser-based mid-infrared hyperspectral imager .” 2009. Thesis, University of St. Andrews. Accessed January 20, 2021. http://hdl.handle.net/10023/731.

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

MLA Handbook (7^th Edition):

Ross, Mark. “An embedded control and display system for a laser-based mid-infrared hyperspectral imager .” 2009. Web. 20 Jan 2021.

Vancouver:

Ross M. An embedded control and display system for a laser-based mid-infrared hyperspectral imager . [Internet] [Thesis]. University of St. Andrews; 2009. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10023/731.

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

Council of Science Editors:

Ross M. An embedded control and display system for a laser-based mid-infrared hyperspectral imager . [Thesis]. University of St. Andrews; 2009. Available from: http://hdl.handle.net/10023/731

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

University of California – Merced

11. Lu, Thompson. Optimization and Comparison of Two Different Fiber Optical Parametric Oscillators for Coherent Raman Scattering Techniques.

Degree: Biological Engineering and Small-scale Technologies, 2014, University of California – Merced

URL: http://www.escholarship.org/uc/item/34t099q3

► Coherent Raman Scattering (CRS) microscopy is a technique used to image cells through the use of intrinsic chemical bonds, which allows for label free imaging… (more)

Subjects/Keywords: Optics; Biomedical engineering; Physics; Coherent Raman Scattering; Fiber Optical Parametric Oscillator; Four Wave Mixing; Nonlinear Fiber Optics

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

APA (6^th Edition):

Lu, T. (2014). Optimization and Comparison of Two Different Fiber Optical Parametric Oscillators for Coherent Raman Scattering Techniques. (Thesis). University of California – Merced. Retrieved from http://www.escholarship.org/uc/item/34t099q3

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):

Lu, Thompson. “Optimization and Comparison of Two Different Fiber Optical Parametric Oscillators for Coherent Raman Scattering Techniques.” 2014. Thesis, University of California – Merced. Accessed January 20, 2021. http://www.escholarship.org/uc/item/34t099q3.

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

MLA Handbook (7^th Edition):

Lu, Thompson. “Optimization and Comparison of Two Different Fiber Optical Parametric Oscillators for Coherent Raman Scattering Techniques.” 2014. Web. 20 Jan 2021.

Vancouver:

Lu T. Optimization and Comparison of Two Different Fiber Optical Parametric Oscillators for Coherent Raman Scattering Techniques. [Internet] [Thesis]. University of California – Merced; 2014. [cited 2021 Jan 20]. Available from: http://www.escholarship.org/uc/item/34t099q3.

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

Council of Science Editors:

Lu T. Optimization and Comparison of Two Different Fiber Optical Parametric Oscillators for Coherent Raman Scattering Techniques. [Thesis]. University of California – Merced; 2014. Available from: http://www.escholarship.org/uc/item/34t099q3

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

12. Villar, Alessandro de Sousa. \"Estudo de emaranhamento no oscilador paramétrico ótico não-degenerado acima do limiar\".

Degree: Mestrado, Física, 2004, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-05062007-140157/ ;

►

A compressão nas flutuações da diferença de intensidades dos feixes sinal e complementar gerados por um OPO acima do limiar foi medida já há algum… (more)

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A compressão nas flutuações da diferença de intensidades dos feixes sinal e complementar gerados por um OPO acima do limiar foi medida já há algum tempo e constituiu um dos principais interesses nestes sistemas. Emaranhamento entre esses feixes, entretanto, ainda não foi experimentalmente demonstrado em circunstâncias normais de operação acima do limiar (feixes não-degenerados em frequência). Usando um critério de não-separabilidade entre sistemas contínuos, buscamos verificar se a variância de um par de operadores tipo EPR, a diferençaa de intensidades e a soma das fases de sinal e complementar, pode violar uma desigualdade suficiente para caracterizar emaranhamento. Após um estudo teórico, verificamos que isto pode de fato ocorrer numa região de parâmetros experimentalmente acessível. A medida não foi realizada até hoje devido à dificuldade em se medir quadratura fase, o que, neste caso, exigiria o uso de osciladores locais em frequências distintas. Motivados por isso, propomos uma montagem experimental que utiliza cavidades óticas para projetar ruído de fase em ruído de intensidade, tornando dessa forma acessível a medida de anticorrelação de fase entre sinal e complementar. Realizamos nossa proposta em caráter preliminar, obtendo resultados encorajadores, embora não conclusivos, que indicam a existência de emaranhamento.

Squeezing in the intensity difference of signal and idler beams generated by an OPO operating above threshold was observed some time ago and presented one of the major attraction of this system. Entanglement between the macroscopic fields, however, has not yet been demonstrated in normal operation conditions above threshold (non-degenerate beams). Using a non-separability criterion for continuous variables, we investigate whether the variances of a pair of EPR-like operators, difference of intensities and sum of phases of signal and idler, can violate a Bell-type inequality and hence characterize entanglement. After a theoretical study, we verified that entanglement can occur in an experimentally accessible region of parameters. This measurement was not performed to date owing to the difficulty of measuring the phase quadratures, which usually requires the use of local oscillators with slightly different frequencies. Motivated by this, we propose an experimental setup that uses optical cavities to rotate the noise ellipse of each beam, projecting phase noise into intensity noise, thus allowing the experimental access to the phase quadratures. We preliminarly implemented our proposal and obtained promising although not conclusive results, that indicate entanglement.

Advisors/Committee Members: Nussenzveig, Paulo Alberto.

Subjects/Keywords: emaranhamento; entanglement; optical parametric oscillator; oscilador paramétrico ótico

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

APA (6^th Edition):

Villar, A. d. S. (2004). \"Estudo de emaranhamento no oscilador paramétrico ótico não-degenerado acima do limiar\". (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-05062007-140157/ ;

Chicago Manual of Style (16^th Edition):

Villar, Alessandro de Sousa. “\"Estudo de emaranhamento no oscilador paramétrico ótico não-degenerado acima do limiar\".” 2004. Masters Thesis, University of São Paulo. Accessed January 20, 2021. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-05062007-140157/ ;.

MLA Handbook (7^th Edition):

Villar, Alessandro de Sousa. “\"Estudo de emaranhamento no oscilador paramétrico ótico não-degenerado acima do limiar\".” 2004. Web. 20 Jan 2021.

Vancouver:

Villar AdS. \"Estudo de emaranhamento no oscilador paramétrico ótico não-degenerado acima do limiar\". [Internet] [Masters thesis]. University of São Paulo; 2004. [cited 2021 Jan 20]. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-05062007-140157/ ;.

Council of Science Editors:

Villar AdS. \"Estudo de emaranhamento no oscilador paramétrico ótico não-degenerado acima do limiar\". [Masters Thesis]. University of São Paulo; 2004. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-05062007-140157/ ;

13. Coelho, Antonio Sales Oliveira. Emaranhamento multicor para redes de informação quântica.

Degree: PhD, Física, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20052014-105215/ ;

►

Apresentamos nesta tese a primeira geração direta de emaranhamento tripartite entre feixes intensos de luz. Medimos o emaranhamento entre os feixes sinal, complementar e bombeio… (more)

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Apresentamos nesta tese a primeira geração direta de emaranhamento tripartite entre feixes intensos de luz. Medimos o emaranhamento entre os feixes sinal, complementar e bombeio refletido, produzidos por um Oscilador Paramétrico Ótico (OPO) operando acima do limiar de oscilação. A principal característica do nosso sistema é a diferença entre os comprimentos de onda dos campos (l0 = 532.251 nm, l1 = 1062.102 nm, e l2 = 1066.915 nm). Esta é a primeira medida de emaranhamento entre mais de dois subsistemas produzidos por uma única fonte no âmbito de variáveis contínuas. Para investigar a existência emaranhamento, utilizamos o critério de positividade sob transposição parcial (PPT). Este critério, aplicado a sistemas compostos por estados gaussianos, dispostos em bipartições do tipo 1×(N 1), torna-se necessário e suficiente na demonstração do emaranhamento. Realizamos também a caracterização do emaranhamento produzido quando submetemos os campos a perdas, identificando regiões de parâmetros onde os estados apresentam emaranhamento frágil ou robusto. A fim de garantir que estamos lidando com estados gaussianos, investigamos a estatística das flutuações dos campos, mostrando excelente acordo entre os valores dos momentos de ordem mais alta da fotocorrente medida e os valores esperados para uma distribuição gaussiana. O estudo que apresentamos é um passo importante para a elaboração de uma rede de informação quântica que possibilitará a comunicação entre diferentes sistemas físicos.

We present in this thesis the first direct generation of tripartite entanglement among bright beams of light. We measured the entanglement among signal, idler and reflected pump beams, produced by an Optical Parametric Oscillator (OPO) operating above the threshold. The main feature of our system is the difference between the wavelengths of the fields (l0 = 532.251 nm, l1 = 1062.102 nm, e l2 = 1066.915 nm). This is the first measurement of entanglement among more than two subsystems produced by a single source, in a continuous variable system. In order to investigate the existence of entanglement, we applied the criterion of positivity under partial transposition (PPT). This criterion, applied to systems composed of Gaussian states, arranged in 1×(N1) bipartition, becomes necessary and sufficient to demonstrate entanglement. We also characterized the entanglement when the fields are submitted to losses, identifying regions of parameters where the states have fragile or robust entanglement. To ensure that we are dealing with Gaussian states, we investigate the statistics of the fields, showing excelent agreement among values of higher order moments of the photocurrent measured and expected values for a Gaussian distribution. The present study is an important step in the development of a quantum information network formed by different physical systems.

Advisors/Committee Members: Nussenzveig, Paulo Alberto.

Subjects/Keywords: emaranhamento; entanglement; Informação Quântica; morte súbita; optical parametric oscillator; oscilador paramétrico ótico; Quantum Iformation; sudden death

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

APA (6^th Edition):

Coelho, A. S. O. (2013). Emaranhamento multicor para redes de informação quântica. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20052014-105215/ ;

Chicago Manual of Style (16^th Edition):

Coelho, Antonio Sales Oliveira. “Emaranhamento multicor para redes de informação quântica.” 2013. Doctoral Dissertation, University of São Paulo. Accessed January 20, 2021. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20052014-105215/ ;.

MLA Handbook (7^th Edition):

Coelho, Antonio Sales Oliveira. “Emaranhamento multicor para redes de informação quântica.” 2013. Web. 20 Jan 2021.

Vancouver:

Coelho ASO. Emaranhamento multicor para redes de informação quântica. [Internet] [Doctoral dissertation]. University of São Paulo; 2013. [cited 2021 Jan 20]. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20052014-105215/ ;.

Council of Science Editors:

Coelho ASO. Emaranhamento multicor para redes de informação quântica. [Doctoral Dissertation]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20052014-105215/ ;

14. Walter, Guillaume. Étude et développement d'un oscillateur paramétrique optique picoseconde rapidement accordable utilisant des cristaux à quasi-accord de phase apériodique : application à la détection de gaz par imagerie active : Study and development of a rapidly tunable picosecond optical parametric oscillator using aperiodically poled nonlinear crystals : Backscattering gas imaging applications.

Degree: Docteur es, Lasers, molécules, rayonnement atmosphérique, 2020, université Paris-Saclay

URL: http://www.theses.fr/2020UPASS046

►

Nous rapportons l'étude d'un Oscillateur Paramétrique Optique (OPO) picoseconde à base de cristaux apériodiques à large bande, utilisé pour des applications en spectroscopie rapide. Cette… (more)

▼

Nous rapportons l'étude d'un Oscillateur Paramétrique Optique (OPO) picoseconde à base de cristaux apériodiques à large bande, utilisé pour des applications en spectroscopie rapide. Cette source paramétrique permet de sonder des gaz possédant des raies d’absorptions dans le moyen infrarouge, sur une plage spectrale difficilement accessible avec un laser solide conventionnel. La spécificité de l’OPO étudié est, outre son régime temporel picoseconde, son cristal non linéaire à quasi-accord de phase apériodique. Cette apériodicité élargit intrinsèquement la bande de gain paramétrique. Les travaux entrepris dans cette thèse portent dans un premier temps sur la caractérisation et l’explication des comportements propres à ce type d’OPO non contraint par filtre spectral. Nous étudions plus particulièrement l’origine du profil spectral cannelé observé dès que la puissance seuil d’oscillation est dépassée : ce profil est composé d’un pic principal et d’une succession de pics latéraux et n’est pas reporté dans la littérature. La deuxième partie de l’étude consiste au contrôle de la longueur d’onde de l’OPO picoseconde en utilisant la condition de pompage synchrone intrinsèque à ce régime temporel, et un réseau de Bragg en volume chirpé (CVBG) : un déplacement du CVBG autour de la position respectant la condition de pompage synchrone, modifie la longueur d’onde oscillant dans la cavité. Cet OPO contraint permet l’étude d’émissions de gaz (N₂O, CO₂, etc.) dans l’atmosphère par imagerie active.

Spectroscopy applications related to greenhouse gases or other gaseous pollutants involve the development of optical sources emitting in the mid-infrared region. A picosecond optical parametric oscillator (OPO) is one of these few sources. The specificity of the picosecond OPO reported in this thesis is its wide gain bandwidth obtained through the use of aperiodically poled nonlinear crystals. The first study aims to characterize and develop the specificity of broadband picosecond OPO, with an emphasis on the origin of the spectral modulation observed from the threshold: the signal spectrum consist of a main peak and a succession of lateral secondary peaks. This OPO is then associated with a chirped volume Bragg grating (CVBG) whose displacement, around the position which respects the synchronous pumping condition, changes the oscillating wavelength. The ability of this highly tunable OPO is finally tested to detect N₂O gas emissions with a backscattering gas imaging technique.

Advisors/Committee Members: Drag, Cyril (thesis director).

Subjects/Keywords: Oscillateur paramétrique optique; Picoseconde; Quasi-accord de phase; Imagerie active; Optical Parametric Oscillator; Picosecond; Quasi phase matching; Active gas sensing

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

APA (6^th Edition):

Walter, G. (2020). Étude et développement d'un oscillateur paramétrique optique picoseconde rapidement accordable utilisant des cristaux à quasi-accord de phase apériodique : application à la détection de gaz par imagerie active : Study and development of a rapidly tunable picosecond optical parametric oscillator using aperiodically poled nonlinear crystals : Backscattering gas imaging applications. (Doctoral Dissertation). université Paris-Saclay. Retrieved from http://www.theses.fr/2020UPASS046

Chicago Manual of Style (16^th Edition):

Walter, Guillaume. “Étude et développement d'un oscillateur paramétrique optique picoseconde rapidement accordable utilisant des cristaux à quasi-accord de phase apériodique : application à la détection de gaz par imagerie active : Study and development of a rapidly tunable picosecond optical parametric oscillator using aperiodically poled nonlinear crystals : Backscattering gas imaging applications.” 2020. Doctoral Dissertation, université Paris-Saclay. Accessed January 20, 2021. http://www.theses.fr/2020UPASS046.

MLA Handbook (7^th Edition):

Walter, Guillaume. “Étude et développement d'un oscillateur paramétrique optique picoseconde rapidement accordable utilisant des cristaux à quasi-accord de phase apériodique : application à la détection de gaz par imagerie active : Study and development of a rapidly tunable picosecond optical parametric oscillator using aperiodically poled nonlinear crystals : Backscattering gas imaging applications.” 2020. Web. 20 Jan 2021.

Vancouver:

Walter G. Étude et développement d'un oscillateur paramétrique optique picoseconde rapidement accordable utilisant des cristaux à quasi-accord de phase apériodique : application à la détection de gaz par imagerie active : Study and development of a rapidly tunable picosecond optical parametric oscillator using aperiodically poled nonlinear crystals : Backscattering gas imaging applications. [Internet] [Doctoral dissertation]. université Paris-Saclay; 2020. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2020UPASS046.

Council of Science Editors:

Walter G. Étude et développement d'un oscillateur paramétrique optique picoseconde rapidement accordable utilisant des cristaux à quasi-accord de phase apériodique : application à la détection de gaz par imagerie active : Study and development of a rapidly tunable picosecond optical parametric oscillator using aperiodically poled nonlinear crystals : Backscattering gas imaging applications. [Doctoral Dissertation]. université Paris-Saclay; 2020. Available from: http://www.theses.fr/2020UPASS046

Colorado State University

15. Wang, Weina. Single cancer cell detection with optofluidic intracavity spectroscopy.

Degree: PhD, Electrical and Computer Engineering, 2012, Colorado State University

URL: http://hdl.handle.net/10217/70024

► The detection of cancer cells is the basis for cancer diagnostics, cancer screening and cancer treatment monitoring. Non-destructive and non-chemical optical methods may help reduce… (more)

▼ The detection of cancer cells is the basis for cancer diagnostics, cancer screening and cancer treatment monitoring. Non-destructive and non-chemical optical methods may help reduce the complexity and cost of related test, making them more available to the public. The label-free technique of optofluidic intracavity spectroscopy (OFIS) uses light transmitted through a cellular body in a microfluidic optical resonator to distinguish different types of cells by their spectral signatures. The OFIS chips are fabricated in the CSU semiconductor clean room and the fabrication process was reported by a previous Ph.D student, Hua Shao. She also did some initial exploration on combining dielectrophoresis (DEP) with the OFIS technique. Since then, some revisions to the fabrication technique have been made to improve the alignment, bonding and sealing of this microfluidic chip. In addition, new DEP electrode designs have been designed and fabricated to further improve the trapping performance of the traps and facilitate automated cell trapping and analysis. Viability tests were carried out to investigate the effect of heating (induced by DEP electrodes) on cells in chips built with borosilicate and sapphire substrates. These experiments used specially designed DEP electrodes that help more accurately control the DEP exposure time and strength. The survival rate of cells out of DEP enabled OFIS system is greatly affected by the substrate type and DEP exposure dose. The OFIS technique has differentiated red and white human blood cells, as well as canine lymphoma and lymphocytes based on their distinctive transmission spectra. Using OFIS chips fabricated with the modified process, OFIS spectra of settled cells from canine hemangiosarcoma (HSA) cell lines and monocytes in peripheral blood mononuclear cells (PBMCs) were collected and analyzed. To quantify the strength of transverse modes in their spectra, a single characteristic parameter was determined for each cell by forming a linear combination of the mean and standard deviation of the transmission spectra over one free spectral range excluding the residual longitudinal peaks of the bare Fabry-Pérot (F-P) cavities filled with cell suspending medium only. The difference in the characteristic parameters of HSA and monocyte samples was highly statistically significant with a p-value as low as 10-6. A receiver operating characteristic (ROC) curve constructed from t-distributions fit to the HSA and monocytes spectra indicates that the cell classification based on their characteristic parameters can achieve 95% sensitivity and 98% specificity simultaneously. Furthermore, some features observed in the spectra of HSA cells motivated a new optical model of the cell loaded F-P cavity. The OFIS spectra of individual cells from canine HSA and canine lymphoma cancer cell lines exhibit relatively uniformly spaced multiple transverse modes repeated in each free spectral range of a microfluidic F-P cavity while similar spectra of healthy canine monocytes and lymphocytes only have up to 2 or no… Advisors/Committee Members: Lear, Kevin (advisor), Chandrasekar, V. (committee member), Krapf, Diego (committee member), Reardon, Kenneth (committee member).

Subjects/Keywords: biophotonics; optofluidic intracavity spectroscopy; optical cancer diagnostics; cell refractometry

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

APA (6^th Edition):

Wang, W. (2012). Single cancer cell detection with optofluidic intracavity spectroscopy. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/70024

Chicago Manual of Style (16^th Edition):

Wang, Weina. “Single cancer cell detection with optofluidic intracavity spectroscopy.” 2012. Doctoral Dissertation, Colorado State University. Accessed January 20, 2021. http://hdl.handle.net/10217/70024.

MLA Handbook (7^th Edition):

Wang, Weina. “Single cancer cell detection with optofluidic intracavity spectroscopy.” 2012. Web. 20 Jan 2021.

Vancouver:

Wang W. Single cancer cell detection with optofluidic intracavity spectroscopy. [Internet] [Doctoral dissertation]. Colorado State University; 2012. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10217/70024.

Council of Science Editors:

Wang W. Single cancer cell detection with optofluidic intracavity spectroscopy. [Doctoral Dissertation]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/70024

16. Armougom, Julie. Nouvelles sources optiques pour la détection d’espèces chimiques dans la bande III : New optical sources for detection of chemical species in the LWIR.

Degree: Docteur es, Optique et radiofrequences, 2018, Université Grenoble Alpes (ComUE)

URL: http://www.theses.fr/2018GREAT077

►

La spectrométrie laser d'absorption différentielle est une technique bien connue pour la détection à distance d'espèces chimiques dans l'atmosphère. À ce titre, la bande III… (more)

▼

La spectrométrie laser d'absorption différentielle est une technique bien connue pour la détection à distance d'espèces chimiques dans l'atmosphère. À ce titre, la bande III qui s'étend entre 8 et 12 µm est une région particulièrement intéressante, car les bandes d'absorption de nombreuses espèces chimiques y sont intenses et se recouvrent peu entre elles. Afin de détecter ces espèces à distance dans la bande III, il est nécessaire de disposer de sources dont le rayonnement est fin spectralement, largement accordable, et énergétique. Les sources basées sur l'optique non linéaire du second ordre constituent la seule technologie capable de répondre à ces besoins. Dans ce travail de thèse, nous présenterons des résultats expérimentaux portant sur deux architectures de sources paramétriques permettant d'émettre un rayonnement dans la bande III adapté à la spectrométrie différentielle en configuration lidar. La première architecture consiste à émettre un faisceau directement dans la bande III grâce au pompage de cristaux non linéaire par des sources laser à 2 µm. La seconde architecture, consiste à amplifier les ondes signal et complémentaire issues d'un OPO à 2 µm, avant de les convertir dans la bande III par différence de fréquences. Ces sources sont basées sur l'association de technologies émergentes et sont susceptibles d'offrir des solutions viables au manque de sources émettant dans la bande III.

Laser spectrometry by differential absorption is a well-known technique for standoff detection of chemical species in the atmosphere. The longwave infrared region (LWIR), ranging from 8 to 12 µm is particularly interesting because the absorption bands of many chemical species are intense and non-overlapping. In order to detect those species in the LWIR, there is a need for sources that are spectrally narrow, widely tunable, and delivers high energies. The sources based on second order nonlinear optics are the only technology able to meet those requirements. In this work, we will present the experimental results on two parametric architectures that allows emission in the LWIR for lidar measurements. The first one consists in emitting a beam directly in the LWIR by pumping nonlinear crystals with 2 µm pump lasers. The second architecture consists in amplifying the signal and idler beams coming from a 2 µm OPO, before converting them into the LWIR by difference frequency generation. Those sources are based on the association of new technologies and have the potential to offer a viable solution to a lack of sources emitting in the LWIR.

Advisors/Committee Members: Boulanger, Benoît (thesis director).

Subjects/Keywords: Optique non linéaire; Sources paramétriques; Oscillateur paramétrique optique; Lidar; Détection à distance; Spectroscopie différentielle; Nonlinear Optics; Parametric Sources; Optical Parametric Oscillator; Lidar; Standoff Detection; Differential Spectroscopy; 530; 620

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

APA (6^th Edition):

Armougom, J. (2018). Nouvelles sources optiques pour la détection d’espèces chimiques dans la bande III : New optical sources for detection of chemical species in the LWIR. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2018GREAT077

Chicago Manual of Style (16^th Edition):

Armougom, Julie. “Nouvelles sources optiques pour la détection d’espèces chimiques dans la bande III : New optical sources for detection of chemical species in the LWIR.” 2018. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed January 20, 2021. http://www.theses.fr/2018GREAT077.

MLA Handbook (7^th Edition):

Armougom, Julie. “Nouvelles sources optiques pour la détection d’espèces chimiques dans la bande III : New optical sources for detection of chemical species in the LWIR.” 2018. Web. 20 Jan 2021.

Vancouver:

Armougom J. Nouvelles sources optiques pour la détection d’espèces chimiques dans la bande III : New optical sources for detection of chemical species in the LWIR. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2018. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2018GREAT077.

Council of Science Editors:

Armougom J. Nouvelles sources optiques pour la détection d’espèces chimiques dans la bande III : New optical sources for detection of chemical species in the LWIR. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2018. Available from: http://www.theses.fr/2018GREAT077

Clemson University

17. Caldwell, Nicholas B. Exploiting the Principal Parametric Resonance of an RLC" Circuit for Vibratory Energy Harvesting".

Degree: MS, Mechanical Engineering, 2016, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/3041

► The use of ambient energy sources to independently power small electronic devices, a process commonly known as energy harvesting, has recently become a focus… (more)

▼ The use of ambient energy sources to independently power small electronic devices, a process commonly known as energy harvesting, has recently become a focus of research due to advances in low-power electronic applications. A particular class of energy harvesting devices, known as vibratory energy harvesters (VEHs), utilizes low-level vibrations present in numerous natural and man-made environments to generate electrical energy for electronic devices. This work investigates the use of a new technique to harvest energy from ambient vibrations by parametrically exciting a resonance condition of the electric current in a nonlinear oscillating circuit. To accomplish this parametric resonance phenomenon, we consider an electromechanical coupling device, an oscillating cantilever beam with a ferromagnetic tip mass, which changes the permeability of an iron-alloy cored inductor coil to produce a harmonically-varying modulation of the inductance. Such a type of harvester possesses the potential to generate large amplitude System response that is not limited by the linear damping of the system, as is the case with directly-excited systems, but rather whose behavior is governed by the nonlinearity of the system. In order to study the ability of such an energy harvesting system to generate electricity when subject to external vibrations, we develop a second-order differential equation to model the theoretical dynamic behavior of a parametrically-driven nonlinear circuit. Due to the complexity of the nonlinear and harmonically-varying components of the governing equation, we use the Method of Multiple Scales to derive an approximate analytical solution for the steady-state current response and output power of the circuit near the principal parametric resonant frequency. We show that the relationship of parameter modulation depth and load resistance characterize the bandwidth of the response and define a critical forcing threshold, below which no energy is harvested. The harvested power is maximized when the load resistance is half of the maximum load resistance at which the critical threshold is still achieved for a given forcing level. We also demonstrate the need for nonlinear damping in the system to attenuate the growth of the response to a physically attainable level. We show the dependence of the natural frequency of the circuit on the parametric forcing parameter, which can lead detuning of the system at different forcing levels. An experimental set up is developed to test the assertions presented by the analytical model. Numerous parameter constraints are balanced in the experimental design in order to be able to achieve the critical forcing threshold necessary for exciting the parametric resonance condition. The frequency response behavior of the electrical current and load power in the circuit is observed by varying the natural frequency of the system, which is compared against the variation of forcing frequency presented in the theoretical section. The beam is excited at its… Advisors/Committee Members: Mohammed F Daqaq, Committee Chair, Phanindra Tallapragada, Gang Li.

Subjects/Keywords: Energy Harvesting; Nonlinear oscillator; Parametric Resonance

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

APA (6^th Edition):

Caldwell, N. B. (2016). Exploiting the Principal Parametric Resonance of an RLC" Circuit for Vibratory Energy Harvesting". (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3041

Chicago Manual of Style (16^th Edition):

Caldwell, Nicholas B. “Exploiting the Principal Parametric Resonance of an RLC" Circuit for Vibratory Energy Harvesting".” 2016. Masters Thesis, Clemson University. Accessed January 20, 2021. https://tigerprints.clemson.edu/all_theses/3041.

MLA Handbook (7^th Edition):

Caldwell, Nicholas B. “Exploiting the Principal Parametric Resonance of an RLC" Circuit for Vibratory Energy Harvesting".” 2016. Web. 20 Jan 2021.

Vancouver:

Caldwell NB. Exploiting the Principal Parametric Resonance of an RLC" Circuit for Vibratory Energy Harvesting". [Internet] [Masters thesis]. Clemson University; 2016. [cited 2021 Jan 20]. Available from: https://tigerprints.clemson.edu/all_theses/3041.

Council of Science Editors:

Caldwell NB. Exploiting the Principal Parametric Resonance of an RLC" Circuit for Vibratory Energy Harvesting". [Masters Thesis]. Clemson University; 2016. Available from: https://tigerprints.clemson.edu/all_theses/3041

18. Cassemiro, Katiuscia Nadyne. Correlações quânticas multicolores no oscilador paramétrico ótico.

Degree: PhD, Física, 2008, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-11062008-153347/ ;

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Investigamos as propriedades quânticas conjuntas dos três feixes intensos de luz produzidos por um oscilador paramétrico ótico (OPO) operando acima do limiar, denominados bombeio, sinal… (more)

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Investigamos as propriedades quânticas conjuntas dos três feixes intensos de luz produzidos por um oscilador paramétrico ótico (OPO) operando acima do limiar, denominados bombeio, sinal e complementar. Analisamos experimentalmente as flutuações quânticas de intensidade e fase destes feixes, e como se correlacionam. Observamos pela primeira vez a presença de correlações quânticas entre as fases dos três campos. O ruído observado na soma das fases de sinal e complementar, Vq12=1,28(3)>1, passa a apresentar compressão de ruído após ser corrigido pelas flutuações de fase do feixe de bombeio, resultando em (Vq12)=́0,84(3)<1. Para potências mais altas de bombeio, observamos também a existência de correlações quânticas diretamente entre as amplitudes do feixe de bombeio e um dos feixes convertidos (sinal ou complementar); a máxima compressão de ruído medida correspondeu a Vp02=0,86(3)<1. Estendemos nosso estudo às propriedades de emaranhamento deste sistema tripartite, para tanto utilizando dois critérios distintos. Nossos dados apontam a separabilidade do sistema no regime de operação estudado, em contradição com o modelo teórico. Utilizando o critério de emaranhamento de P. van Loock e A. Furusawa, obtivemos os seguintes valores para as combinação de variâncias que comprovariam a inseparabilidade caso fossem menores que 2: V0=1,29(5)<2, V1=2,04(11)>2 e V2=2,09(7)>2. Com relação ao segundo critério de separabilidade, positividade sob transposição parcial, obtivemos os seguintes autovalores simpléticos a partir da matriz de covariância medida: A0=0,94(8) e A1=0,36(6)<1, em que o emaranhamento seria evidenciado caso A0<1 e A1<1. Esta discordância com a previsão teórica está relacionada a um ruído clássico espúrio observado no sistema, cujas características são levantadas nesta tese. Nossa análise indica os rumos a serem seguidos para a observação do emaranhamento. Mostramos teoricamente que o emaranhamento tripartite previsto pode ser utilizado como recurso para a criação de um sistema emaranhado multipartite. Para tanto, diversos OPOs são utilizados em uma configuração em cadeia, na qual o feixe de bombeio refletido pelo primeiro OPO serve de bombeio para o segundo e assim sucessivamente. Este esquema permite a geração de uma rede quântica multicolor escalável. Por fim, descrevemos a construção de um laser de Ti:safira que representa o primeiro passo na integração entre luz não-clássica e física atômica a ser investigada em nosso laboratório. Este laser pode ser utilizado, ao mesmo tempo, como bombeio do OPO e de uma nuvem de átomos. O emaranhamento tripartite gerado no OPO estabeleceria a conexão destes últimos com os feixes convertidos, cujos comprimentos de onda possibilitariam a transmissão direta destes feixes de luz através de fibras óticas comerciais de telecomunicação.

We have investigated the collective quantum properties of the three bright light beams produced by an optical parametric oscillator (OPO) operating above threshold, named pump, signal, and idler. We have analyzed experimentally their…

Advisors/Committee Members: Nussenzveig, Paulo Alberto.

Subjects/Keywords: Correlações Quânticas; Emaranhamento; Entanglement; Informação Quântica; Laser; Laser; non-linear Optics; Optical Parametric Oscillator; Oscilador Paramétrico Ótico; Ótica não-linear; Quantum Correlation.; Quantum Information

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

APA (6^th Edition):

Cassemiro, K. N. (2008). Correlações quânticas multicolores no oscilador paramétrico ótico. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/43/43134/tde-11062008-153347/ ;

Chicago Manual of Style (16^th Edition):

Cassemiro, Katiuscia Nadyne. “Correlações quânticas multicolores no oscilador paramétrico ótico.” 2008. Doctoral Dissertation, University of São Paulo. Accessed January 20, 2021. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-11062008-153347/ ;.

MLA Handbook (7^th Edition):

Cassemiro, Katiuscia Nadyne. “Correlações quânticas multicolores no oscilador paramétrico ótico.” 2008. Web. 20 Jan 2021.

Vancouver:

Cassemiro KN. Correlações quânticas multicolores no oscilador paramétrico ótico. [Internet] [Doctoral dissertation]. University of São Paulo; 2008. [cited 2021 Jan 20]. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-11062008-153347/ ;.

Council of Science Editors:

Cassemiro KN. Correlações quânticas multicolores no oscilador paramétrico ótico. [Doctoral Dissertation]. University of São Paulo; 2008. Available from: http://www.teses.usp.br/teses/disponiveis/43/43134/tde-11062008-153347/ ;

19. Ly, Aliou. Développement d’un oscillateur paramétrique optique continu intense et à faible bruit pour des applications aux communications quantiques. : Development of a High Power and a Low Noise Continuous-Wave Optical Parametric Oscillator for Quantum Communications Applications.

Degree: Docteur es, Optique, optoélectronique, microondes, 2017, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2017SACLS528

►

La portée des communications quantiques est limitée à quelques dizaines de km en raison de l’atténuation dans les fibres. Les répéteurs quantiques (relais quantiques synchronisés… (more)

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La portée des communications quantiques est limitée à quelques dizaines de km en raison de l’atténuation dans les fibres. Les répéteurs quantiques (relais quantiques synchronisés par des mémoires quantiques photoniques) furent introduits afin d’accroître ces distances. Or, pour le moment, les mémoires les plus performantes fonctionnent à des longueurs d’onde n’appartenant pas à la bande C télécom. Afin de profiter de ces mémoires, l’utilisation d’interfaces quantiques (milieu non linéaire quadratique) fut proposée comme alternative. En ajoutant ainsi par somme de fréquences un photon de pompe de longueur d’onde appropriée au photon télécom portant l’information, on transfère l’information à une longueur d’onde compatible avec les mémoires, et ceci sans dégradation de l’information portée initialement par le photon télécom. Notre but est ainsi de construire un oscillateur paramétrique optique continu simplement résonant (SRO) qui fournira un faisceau à 1648 nm qui sera sommé en fréquence aux photons télécom à 1536 nm pour transférer l’information vers un photon stockable dans une mémoire à base d’atomes alcalins. Pour transférer efficacement l’information, le SRO doit satisfaire quelques critères : une haute finesse spectrale (largeur de raie ~kHz), une forte puissance (~1W) et une longueur d’onde plus grande que celle du photon télécom à convertir. Pour ce faire, nous utilisons le faisceau non-résonant d’un SRO continu. Le premier travail réalisé dans cette thèse a été de faire la démonstration de la possibilité d’avoir un faisceau à la fois intense et pur spectralement en sortie d’un SRO continu. En réutilisant un SRO déjà développé durant nos travaux antérieurs, nous avons pu stabiliser au niveau du kHz la fréquence du faisceau non résonant à 947 nm (onde signal) de ce SRO, tout en émettant une puissance de plus d’un watt. Ensuite, nous avons conçu le SRO dont le faisceau non résonant à 1648 nm (onde complémentaire) a été stabilisé à court terme en-dessous du kHz avec une puissance de l’ordre du watt. Nous avons ensuite étudié la stabilité à long terme de la longueur d’onde du complémentaire à 1648 nm. Nous avons mesuré des dérives de fréquences de l’ordre de 10 MHz/mn. Ces dérives, venant essentiellement de la cavité de référence sur laquelle le SRO est asservi, peuvent être réduites en contrôlant activement la cavité d’une part, et en utilisant des techniques de stabilisation en fréquence robustes, d’autre part.

Long distance quantum communications are limited to few tens of km due to the attenuation of light in telecom fibres. Quantum repeaters (quantum relays synchronized by photonic quantum memories) were introduced in order to increase distances. Or, currently, the most efficient memories do not operate at wavelengths in the telecom C band. In order to take advantage of these memories, the use of quantum interfaces (second order nonlinear medium) was proposed as an alternative. Thus, by adding by sum frequency generation a pump photon at an appropriate wavelength to the telecom photon carrying the…

Advisors/Committee Members: Bretenaker, Fabien (thesis director).

Subjects/Keywords: Communication quantique; Oscillateur paramétrique optique; Mémoire quantique; Bruit de fréquence; Asservissement; Forte puissance; Quantum communication; Optical parametric oscillator; Quantum memory; Frequency noise; Frequency stabilization; High power

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

APA (6^th Edition):

Ly, A. (2017). Développement d’un oscillateur paramétrique optique continu intense et à faible bruit pour des applications aux communications quantiques. : Development of a High Power and a Low Noise Continuous-Wave Optical Parametric Oscillator for Quantum Communications Applications. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2017SACLS528

Chicago Manual of Style (16^th Edition):

Ly, Aliou. “Développement d’un oscillateur paramétrique optique continu intense et à faible bruit pour des applications aux communications quantiques. : Development of a High Power and a Low Noise Continuous-Wave Optical Parametric Oscillator for Quantum Communications Applications.” 2017. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed January 20, 2021. http://www.theses.fr/2017SACLS528.

MLA Handbook (7^th Edition):

Ly, Aliou. “Développement d’un oscillateur paramétrique optique continu intense et à faible bruit pour des applications aux communications quantiques. : Development of a High Power and a Low Noise Continuous-Wave Optical Parametric Oscillator for Quantum Communications Applications.” 2017. Web. 20 Jan 2021.

Vancouver:

Ly A. Développement d’un oscillateur paramétrique optique continu intense et à faible bruit pour des applications aux communications quantiques. : Development of a High Power and a Low Noise Continuous-Wave Optical Parametric Oscillator for Quantum Communications Applications. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2017. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2017SACLS528.

Council of Science Editors:

Ly A. Développement d’un oscillateur paramétrique optique continu intense et à faible bruit pour des applications aux communications quantiques. : Development of a High Power and a Low Noise Continuous-Wave Optical Parametric Oscillator for Quantum Communications Applications. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2017. Available from: http://www.theses.fr/2017SACLS528

20. Kurti, R. Steven, Jr. Pulse Compression in a Mid-infrared Synchronously Pumped Optical Parametric Oscillator.

Degree: PhD, Physics, 2005, Case Western Reserve University School of Graduate Studies

URL: http://rave.ohiolink.edu/etdc/view?acc_num=case1106235646

► Short pulse tunable sources in the mid-infrared optical region have been an indispensible tool of research for several years. Yet the complexity of these systems… (more)

▼ Short pulse tunable sources in the mid-infrared optical region have been an indispensible tool of research for several years. Yet the complexity of these systems limits their usefulness in many applications. In this study, pulse compression in a synchronously pumped optical parametric oscillator (SPOPO) is investigated as an alternative to these systems. Although pulse compression has been known for several years, a full understanding of the process has not been developed. This has inhibited its full exploitation. In this work, a search of the input parameter space is conducted in order to illucidate the mechanisms involved in pulse compression. The experiments conducted correlated compression to the input energy, optical parametric oscillator (OPO) wavelengths, and OPO cavity length detuning. The 10 ps pump pulses from a pulsed Nd:YAG laser interact in the parametric oscillator to generate infrared output pulses as short as 400 fs—a 20 fold compression. Experiments indicate that the compression varies directly with the input energy and inversely with the signal-idler group velocity mismatch (GVM) across the 2.5 – 4.0μm spectral range. It is also found that the cavity detuning length affected the dynamics of the nonlinear interaction. To gain physical insight into the experimental findings, numerical modeling is employed. Using nominal values for the input parameters, it is found that the model predicts the compression within about 30% and accurately predicts the input energy and signal-idler GVM trends. This agreement is then the basis for employing the model to extract physical insight into the compression mechanism. The dependence of compression on the signal-idler GVM is found to be more than an order of magnitude stronger than the signal-pump GVM usually thought to be responsible for the pulse compression. The model further predicts that using a 1 ps pump source should yield pulses on the order of 50 fs and that strong pulse compression could also be observed in other mid-infrared nonlinear crystals. Additionally the model is used to investigate the limits of compression with respect to increasing input energy and decreasing signal-idler GVM. Advisors/Committee Members: Singer, Kenneth (Advisor).

Subjects/Keywords: pulse compression; synchronously pumped optical parametric oscillator; SPOPO; optical parametric oscillator; OPO; optical pulse compression; silver gallium sulfide; AGS; AgGaS2; tunable radiation; tunable infrared; tunable mid-infrared; mid-infrared

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APA (6^th Edition):

Kurti, R. Steven, J. (2005). Pulse Compression in a Mid-infrared Synchronously Pumped Optical Parametric Oscillator. (Doctoral Dissertation). Case Western Reserve University School of Graduate Studies. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1106235646

Chicago Manual of Style (16^th Edition):

Kurti, R. Steven, Jr. “Pulse Compression in a Mid-infrared Synchronously Pumped Optical Parametric Oscillator.” 2005. Doctoral Dissertation, Case Western Reserve University School of Graduate Studies. Accessed January 20, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1106235646.

MLA Handbook (7^th Edition):

Kurti, R. Steven, Jr. “Pulse Compression in a Mid-infrared Synchronously Pumped Optical Parametric Oscillator.” 2005. Web. 20 Jan 2021.

Vancouver:

Kurti, R. Steven J. Pulse Compression in a Mid-infrared Synchronously Pumped Optical Parametric Oscillator. [Internet] [Doctoral dissertation]. Case Western Reserve University School of Graduate Studies; 2005. [cited 2021 Jan 20]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1106235646.

Council of Science Editors:

Kurti, R. Steven J. Pulse Compression in a Mid-infrared Synchronously Pumped Optical Parametric Oscillator. [Doctoral Dissertation]. Case Western Reserve University School of Graduate Studies; 2005. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1106235646

Rochester Institute of Technology

21. Artusio-Glimpse, Alexandra Brae. The Realization and Study of Optical Wings.

Degree: PhD, Chester F. Carlson Center for Imaging Science (COS), 2016, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/9227

► Consider the airfoil: a carefully designed structure capable of stable lift in a uniform air flow. It so happens that air pressure and radiation… (more)

Subjects/Keywords: Micro oscillator; Optical manipulation; Radiation pressure

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APA (6^th Edition):

Artusio-Glimpse, A. B. (2016). The Realization and Study of Optical Wings. (Doctoral Dissertation). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/9227

Chicago Manual of Style (16^th Edition):

Artusio-Glimpse, Alexandra Brae. “The Realization and Study of Optical Wings.” 2016. Doctoral Dissertation, Rochester Institute of Technology. Accessed January 20, 2021. https://scholarworks.rit.edu/theses/9227.

MLA Handbook (7^th Edition):

Artusio-Glimpse, Alexandra Brae. “The Realization and Study of Optical Wings.” 2016. Web. 20 Jan 2021.

Vancouver:

Artusio-Glimpse AB. The Realization and Study of Optical Wings. [Internet] [Doctoral dissertation]. Rochester Institute of Technology; 2016. [cited 2021 Jan 20]. Available from: https://scholarworks.rit.edu/theses/9227.

Council of Science Editors:

Artusio-Glimpse AB. The Realization and Study of Optical Wings. [Doctoral Dissertation]. Rochester Institute of Technology; 2016. Available from: https://scholarworks.rit.edu/theses/9227

University of New Mexico

22. Liu, Fenfei. OPTICAL AND OPTOMECHANICAL RESONATORS AND THEIR APPLICATIONS IN COMMUNICATION AND SENSING.

Degree: Physics & Astronomy, 2013, University of New Mexico

URL: http://hdl.handle.net/1928/23342

► The radiation pressure of the large circulating optical power inside micro-scale high quality factor Whispering-Gallery mode micoresonators couples the mechanical deformation of the resonator structure… (more)

▼ The radiation pressure of the large circulating optical power inside micro-scale high quality factor Whispering-Gallery mode micoresonators couples the mechanical deformation of the resonator structure to the optical resonance. This coupling results in damping or amplification of the corresponding mechanical modes. Self-sustained mechanical oscillation takes place when the optomechanical gain becomes larger than mechanical loss. In this dissertation, several applications of optomechanical oscillator (OMO) in communication and sensing are proposed and explored using silica microtoroid resonator. First we investigate the spectrum of the OMO and define weak' and 'strong' harmonic generation regimes based on two distinct spectral behaviors. In weak harmonic regime, an analytical method is proposed to optimize the spectral behavior of an OMO for RF-photonic communication systems. In the strong harmonic regime, we show that OMO spectrum can be used in a read-out system for resonant optical sensing applications. Next, we explore optomechanical RF mixing and its application in RF-photonics. We study optomechanical RF mixing using coupled differential equations as well as a semi-analytical model that simplifies the calculation of mixed frequency components. Furthermore, optomechanical down-conversion of various waveforms and audio signal from an RF carrier are demonstrated. Here for the first time we show that an OMO can function as a high-resolution mass sensor based on optomechanical oscillation frequency shift. In an OMO based mass sensor, optical power simultaneously servers as an efficient actuator and a sensitive probe for monitoring optomechanical oscillation frequency variations. The narrow linewidth of optomechanical oscillation and the small effective mass of the corresponding mechanical mode result in sub-pg mass sensitivity. We analyze the performance of microtoroid OMO mass sensor and evaluate its ultimate detection limit. The outcomes of our study enable combination of resonant optical sensing with optomechanical sensing in a single device. This so-called 'dual-mode' sensing can be a powerful technique for measuring the properties (mass, density and refractive index) of micro/nano-particles and molecules. To boost the optical sensitivity of the dual-mode sensor, we also demonstrate a dynamic sensing method where the resonant photonic sensitivity is improved by over 50 times through thermally induced line narrowing. Advisors/Committee Members: Hossein-Zadeh, Mani, Thomas, James L., Leseman, Zayd C., Sheik-Bahae, Mansoor.

Subjects/Keywords: Optical resonator; Communication; Sensor; Optomechanical oscillator

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APA (6^th Edition):

Liu, F. (2013). OPTICAL AND OPTOMECHANICAL RESONATORS AND THEIR APPLICATIONS IN COMMUNICATION AND SENSING. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/23342

Chicago Manual of Style (16^th Edition):

Liu, Fenfei. “OPTICAL AND OPTOMECHANICAL RESONATORS AND THEIR APPLICATIONS IN COMMUNICATION AND SENSING.” 2013. Doctoral Dissertation, University of New Mexico. Accessed January 20, 2021. http://hdl.handle.net/1928/23342.

MLA Handbook (7^th Edition):

Liu, Fenfei. “OPTICAL AND OPTOMECHANICAL RESONATORS AND THEIR APPLICATIONS IN COMMUNICATION AND SENSING.” 2013. Web. 20 Jan 2021.

Vancouver:

Liu F. OPTICAL AND OPTOMECHANICAL RESONATORS AND THEIR APPLICATIONS IN COMMUNICATION AND SENSING. [Internet] [Doctoral dissertation]. University of New Mexico; 2013. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1928/23342.

Council of Science Editors:

Liu F. OPTICAL AND OPTOMECHANICAL RESONATORS AND THEIR APPLICATIONS IN COMMUNICATION AND SENSING. [Doctoral Dissertation]. University of New Mexico; 2013. Available from: http://hdl.handle.net/1928/23342

Universitat de Valencia

23. Martínez Lorente, Rubén. Formación de estructuras no lineales mediante control de la fase en sistemas fotorrefractivos .

Degree: 2018, Universitat de Valencia

URL: http://hdl.handle.net/10550/66786

► Esta tesis doctoral se ha realizado en el campo de la Óptica No Lineal experimental, dentro de un marco de investigación básica. El objeto de… (more)

▼ Esta tesis doctoral se ha realizado en el campo de la Óptica No Lineal experimental, dentro de un marco de investigación básica. El objeto de estudio es la manipulación experimental de estructuras que pueden emerger en la sección transversal de un haz láser bajo determinadas condiciones, y que además están caracterizadas por su fase: como, por ejemplo, vórtices, solitones o dominios de fase. Como elemento activo no lineal que contribuye a la generación de este tipo de estructuras, se utilizan diferentes tipos cristal fotorrefractivos (PRCs) con tiempos de respuesta largos como el BaTiO3 y el SBN o tiempos cortos como el KTLN. El presente manuscrito está redactado como un compendio de artículos, con un total de cinco publicaciones. Tres de ellas han sido realizadas en la Universitat de València y las otras dos se han llevado a cabo en la Universitá di Roma. El texto ha sido concebido como una estructura que incluye 4 capítulos. En el primer capítulo se encuentra una introducción sobre los conceptos e ideas básicas en los que se han basados los experimentos: la formación de patrones. Además, se explica la teoría y fenomenología que soportan los experimentos y que ayudan a la comprensión de los resultados. En el segundo, se presentan los resúmenes de los trabajos publicados, donde se explica la metodología que se ha usado para desarrollar los experimentos. En el tercer capítulo se encuentran las conclusiones, donde se subrayan los aspectos más novedosos que se han obtenido en este período de formación doctoral. Y, por último, como cuarto capítulo, se adjuntan las publicaciones en las que se basan los experimentos realizados. El período de formación de doctorado se ha desarrollado en el Department d’Òptica i Optometria i Ciéncies de la Visió, en la Facultat de Física de la Universitat de València (España). Durante este período se han realizado dos estancias breves, dentro del mismo marco experimental que en la Universitat de València. Una estancia se ha realizado en La Universitá degli Studi di Roma, ’La Sapienza’ en Roma (Italia). La segunda estancia fue realizada en el centro de Ingeniería Eléctrica en Princeton (New Jersey, EE.UU.). Los trabajos realizados en Valencia, se basan en la demostración experimental de la ruptura de simetrías de fase en estructuras no lineales que emergen en un oscilador óptico fotorrefractivo (PRO). Este cambio de simetría se produce por la aplicación de una modulación óptica conocida como Rocking [6, 7]. El objetivo principal de estos trabajos es el cambio del estado del sistema, de invariancia o biestabilidad en fase, a un estado bi- o multi-estable en fase respectivamente. Como se explica en detalle más adelante, esto permite la manipulación de estructuras complejas: unas con invariancia de fase como vórtices y otras que presentan bi-estabilidad o multi-estabilidad en fase, por ejemplo, dominios o paredes de fase. Los experimentos llevados a cabo en la estancia de investigación en Roma, se basan en la propagación libre a través de cristales fotorrefractivos y en láseres… Advisors/Committee Members: Silva Vázquez, Fernando (advisor).

Subjects/Keywords: Patterns; Photorefractive; Photorefractive Optical Oscillator; Rocking modulation

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APA (6^th Edition):

Martínez Lorente, R. (2018). Formación de estructuras no lineales mediante control de la fase en sistemas fotorrefractivos . (Doctoral Dissertation). Universitat de Valencia. Retrieved from http://hdl.handle.net/10550/66786

Chicago Manual of Style (16^th Edition):

Martínez Lorente, Rubén. “Formación de estructuras no lineales mediante control de la fase en sistemas fotorrefractivos .” 2018. Doctoral Dissertation, Universitat de Valencia. Accessed January 20, 2021. http://hdl.handle.net/10550/66786.

MLA Handbook (7^th Edition):

Martínez Lorente, Rubén. “Formación de estructuras no lineales mediante control de la fase en sistemas fotorrefractivos .” 2018. Web. 20 Jan 2021.

Vancouver:

Martínez Lorente R. Formación de estructuras no lineales mediante control de la fase en sistemas fotorrefractivos . [Internet] [Doctoral dissertation]. Universitat de Valencia; 2018. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10550/66786.

Council of Science Editors:

Martínez Lorente R. Formación de estructuras no lineales mediante control de la fase en sistemas fotorrefractivos . [Doctoral Dissertation]. Universitat de Valencia; 2018. Available from: http://hdl.handle.net/10550/66786

24. Rihan, Abdallah. Sources laser non linéaires accordables dans l'infrarouge et l'ultraviolet pour la métrologie des rayonnements optiques : infrared and ultraviolet synchronization of non-linear laser sources aimed at optical radiation metrology.

Degree: Docteur es, Lasers, nanosciences et métrologie, 2011, Paris, CNAM

URL: http://www.theses.fr/2011CNAM0797

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L'objet de cette thèse porte sur la conception et la réalisation de deux sources laser non linéaires accordables dans les domaines IR et UV, pour… (more)

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L'objet de cette thèse porte sur la conception et la réalisation de deux sources laser non linéaires accordables dans les domaines IR et UV, pour le raccordement de la sensibilité spectrale des détecteurs au moyen du radiomètre cryogénique du laboratoire commun de métrologie (LCM). La source IR est un oscillateur paramétrique optique (OPO) résonant sur les ondes pompe et signal (PRSRO), utilisant un cristal de niobate de lithium à inversion de domaines de polarisation dopé par 5% d'oxyde de magnésium (ppMgCLN). Pompé par un laser Ti:Al2O3 en anneau mono-fréquence et accordable, délivrant 500 mW de puissance utile autour de 795 nm, l'OPO possède un seuil d'oscillation de 110 mW. Une couverture spectrale continue entre 1 µm et 3.5 µm a été obtenue, avec des puissances de l'ordre du mW pour l'onde signal (1 µm à 1.5 µm) et des puissances comprises entre 20 à 50 mW pour l'onde complémentaire couvrant un octave de longueur d'onde IR entre 1.7 µm et 3.5 µm. La source UV est obtenue par doublage de fréquence en cavité externe du laser Ti:Al2O3, dans un cristal de triborate de lithium (LiB3O5). Un accord de phase en température à angle d'accord de phase fixé permet l'obtention d'une couverture spectrale comprise entre 390 nm et 405 nm. L'asservissement de la cavité de doublage sur la fréquence du laser Ti:Al2O3 par la méthode de Pound-Drever-Hall, ainsi qu'une adaptation de mode optimale, permet d'obtenir une puissance de 5.64 mW à 400 nm à partir de 480 mW de puissance fondamentale.

The work presented in this PhD dissertation details the strategy adopted to build two non-linear laser sources that are widely in the mid-infrared and blue-UV spectral ranges. These laser sources are needed for the traceability to SI units of coherent light irradiance measurements using a cryogenic radiometer of the using cryogenic radiometer of the Laboratoire commun de métrologie (LCM) .The infrared laser source is an optical parametric oscillator (OPO) resonating on the pump and signal wavelengths (PRSRO) and employing a periodically poled Lithium Niobate non-linear crystal doped with 5% magnesium oxide (ppMgCLN). The PRSRO is pumped by a single-frequency tunable bow-tie ring cavity Titanium-Sapphire laser (Ti:Al2O3) delivering 500 mW output power at 795 nm wavelength, , resulting in a power oscillation threshold of 110 mW. The PRSRO emission could continuously cover the spectral range from 1 µm to 3.5 µm. The level of output power achieved is of the order of 1 mW for the signal wave (1 µm to 1.5 µm) and between 20 mW and 50 mW for idler wave spanning an octave wavelength range (1.7 µm to 3.5 µm).The UV source based on the second harmonic generation on the Titanium-Sapphire tunable laser using an external enhancement cavity containing a critically phase-matched LBO non linear crystal (LiB3O5). Temperature-tuning of the phase-matching condition at a fixed crystal orientation leads to a wide tunability from 390 nm to 405 nm wavelength. The external cavity optical pathlength was actively locked to the laser frequency using a¨Pound-Drever-Hall…

Advisors/Committee Members: Zondy, Jean-Jacques (thesis director).

Subjects/Keywords: Oscillateur paramétrique optique; Résonateur optique; Accord de phase; Génération de seconde harmonique; Méthode de Pound-Drever-Hall; Adaptation de mode; Adaptation d'impédance; Optical parametric oscillator; Optical resonator; Phase matching; Second harmonic generation; Pound-Drever-Hall method; Mode matching; Impedance matching

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

APA (6^th Edition):

Rihan, A. (2011). Sources laser non linéaires accordables dans l'infrarouge et l'ultraviolet pour la métrologie des rayonnements optiques : infrared and ultraviolet synchronization of non-linear laser sources aimed at optical radiation metrology. (Doctoral Dissertation). Paris, CNAM. Retrieved from http://www.theses.fr/2011CNAM0797

Chicago Manual of Style (16^th Edition):

Rihan, Abdallah. “Sources laser non linéaires accordables dans l'infrarouge et l'ultraviolet pour la métrologie des rayonnements optiques : infrared and ultraviolet synchronization of non-linear laser sources aimed at optical radiation metrology.” 2011. Doctoral Dissertation, Paris, CNAM. Accessed January 20, 2021. http://www.theses.fr/2011CNAM0797.

MLA Handbook (7^th Edition):

Rihan, Abdallah. “Sources laser non linéaires accordables dans l'infrarouge et l'ultraviolet pour la métrologie des rayonnements optiques : infrared and ultraviolet synchronization of non-linear laser sources aimed at optical radiation metrology.” 2011. Web. 20 Jan 2021.

Vancouver:

Rihan A. Sources laser non linéaires accordables dans l'infrarouge et l'ultraviolet pour la métrologie des rayonnements optiques : infrared and ultraviolet synchronization of non-linear laser sources aimed at optical radiation metrology. [Internet] [Doctoral dissertation]. Paris, CNAM; 2011. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2011CNAM0797.

Council of Science Editors:

Rihan A. Sources laser non linéaires accordables dans l'infrarouge et l'ultraviolet pour la métrologie des rayonnements optiques : infrared and ultraviolet synchronization of non-linear laser sources aimed at optical radiation metrology. [Doctoral Dissertation]. Paris, CNAM; 2011. Available from: http://www.theses.fr/2011CNAM0797

Macquarie University

25. Jasbeer, Hadiya. High power continuous-wave frequency conversion in the visible and ultraviolet using diamond.

Degree: 2017, Macquarie University

URL: http://hdl.handle.net/1959.14/1265296

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Empirical thesis.

Bibliography: pages 161-180.

1. Introduction – 2. Stress effects in laser grade single crystal CVD diamond – 3. The effects of diamond birefringence… (more)

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Empirical thesis.

Bibliography: pages 161-180.

1. Introduction – 2. Stress effects in laser grade single crystal CVD diamond – 3. The effects of diamond birefringence in CW DRLs – 4. CW visible generation by intracavity frequency doubling – 5. 532 nm-pumped DRL : CW yellow and deep-UV generation – 6. Conclusion and future perspectives – 7. List of publications – A. Voigt abbreviated notation – B. Related publications.

Solid-state Raman lasers are a convenient technology for shifting the wavelength of conventional lasers to exotic wavelengths with enhanced brightness. Recently, diamond has emerged as an outstanding Raman medium due to its capacity for power handling with demonstrations of very high output powers (hundreds of watts) in the continuous wave regime. To date, these demonstrations have been performed in the near-infrared. However, t here is demand for continuous high brightness output at shorter wavelengths (visible and UV). This thesis aims to address this challenge by intracavity nonlinear frequency mixing.

As nonlinear mixing is a polarization dependent process, the polarization behaviour of the Raman laser is critical to efficient operation. Thus as a first step, this thesis investigates the polarization properties of external cavity diamond Raman lasers including a detailed investigation of anomalous polarization effects that had been previously reported.

In-grown stress-induced birefringence in the diamond is identified as critical to the polarization behaviour. Birefringence was characterized using Mueller polarimetry, a technique that provides a complete description of the Mueller matrix. Surprisingly, substantial circular retardance is observed in some locations of the sample and of sufficient magnitude to induce errors in measurements obtained using more standard polarimetric techniques such as Metripol. The analysis finds that most significant parameter influencing the laser performance is the linear birefringence axis direction. This parameter is found to dictate the threshold for laser operation and the polarization of the Stokes output. These outcomes provide a firm basis for selecting crystals, optimizing the input pump polarization.

The knowledge was used to develop a high power intracavity frequency doubled CW diamond Raman laser operating in Quasi-CW mode. Using an external cavity Raman configuration and 1064 nm pumping, a 620 nm laser of output power 30W and M²<1.1, parameters that are difficult to achieve presently using any other laser technology. The critical design parameters that affects the visible conversion efficiency was evaluated experimentally. Furthermore, a model was developed to predict design parameters for optimum laser performance and power scaling.

The concepts were also adapted to a DRL pumped at 532 nm. First Stokes output in the yellow (573 nm) was demonstrated with 15 W and 22.7% conversion efficiency. A model for the laser is presented to optimize efficiency and further increase power. The results were used to predict the design for…

Advisors/Committee Members: Macquarie University. Department of hysics and Astronomy.

Subjects/Keywords: Diamonds, Artificial – Optical properties; Raman spectroscopy; Solid-state lasers; raman lasers; diamond; crystal; birefringence; intracavity frequency; polarimetry; second harmonic generation

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

APA (6^th Edition):

Jasbeer, H. (2017). High power continuous-wave frequency conversion in the visible and ultraviolet using diamond. (Doctoral Dissertation). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/1265296

Chicago Manual of Style (16^th Edition):

Jasbeer, Hadiya. “High power continuous-wave frequency conversion in the visible and ultraviolet using diamond.” 2017. Doctoral Dissertation, Macquarie University. Accessed January 20, 2021. http://hdl.handle.net/1959.14/1265296.

MLA Handbook (7^th Edition):

Jasbeer, Hadiya. “High power continuous-wave frequency conversion in the visible and ultraviolet using diamond.” 2017. Web. 20 Jan 2021.

Vancouver:

Jasbeer H. High power continuous-wave frequency conversion in the visible and ultraviolet using diamond. [Internet] [Doctoral dissertation]. Macquarie University; 2017. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1959.14/1265296.

Council of Science Editors:

Jasbeer H. High power continuous-wave frequency conversion in the visible and ultraviolet using diamond. [Doctoral Dissertation]. Macquarie University; 2017. Available from: http://hdl.handle.net/1959.14/1265296

University of California – Irvine

26. Yang, Liu. Magnetization dynamics in Pt/Ni80Fe20 nanowires induced by spin Hall effect.

Degree: Physics, 2015, University of California – Irvine

URL: http://www.escholarship.org/uc/item/7b36f6mr

► Spin current is the flow of electron spin angular momentum. It can either be partially spin polarized current generated due to the exchange interactions of… (more)

Subjects/Keywords: Physics; nanowire; parametric resonance; spin Hall effect; spin torque oscillator

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APA (6^th Edition):

Yang, L. (2015). Magnetization dynamics in Pt/Ni80Fe20 nanowires induced by spin Hall effect. (Thesis). University of California – Irvine. Retrieved from http://www.escholarship.org/uc/item/7b36f6mr

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, Liu. “Magnetization dynamics in Pt/Ni80Fe20 nanowires induced by spin Hall effect.” 2015. Thesis, University of California – Irvine. Accessed January 20, 2021. http://www.escholarship.org/uc/item/7b36f6mr.

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, Liu. “Magnetization dynamics in Pt/Ni80Fe20 nanowires induced by spin Hall effect.” 2015. Web. 20 Jan 2021.

Vancouver:

Yang L. Magnetization dynamics in Pt/Ni80Fe20 nanowires induced by spin Hall effect. [Internet] [Thesis]. University of California – Irvine; 2015. [cited 2021 Jan 20]. Available from: http://www.escholarship.org/uc/item/7b36f6mr.

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

Council of Science Editors:

Yang L. Magnetization dynamics in Pt/Ni80Fe20 nanowires induced by spin Hall effect. [Thesis]. University of California – Irvine; 2015. Available from: http://www.escholarship.org/uc/item/7b36f6mr

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

University of California – Merced

27. Castelli, Alessandro Roberto. Superconducting radio frequency cavities for parametric amplification and optomechanics.

Degree: Physics, 2018, University of California – Merced

URL: http://www.escholarship.org/uc/item/8vz1r6hx

► Superconducting radio frequency (SRF) cavities present a unique opportunity in their potential for extremely large quality factors (Q) which allow for low-loss microwave systems which… (more)

Subjects/Keywords: Physics; Electromagnetics; Electrical engineering; Cavities; Optomechanics; Oscillator; Parametric; SRF; Superconductivity

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APA (6^th Edition):

Castelli, A. R. (2018). Superconducting radio frequency cavities for parametric amplification and optomechanics. (Thesis). University of California – Merced. Retrieved from http://www.escholarship.org/uc/item/8vz1r6hx

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):

Castelli, Alessandro Roberto. “Superconducting radio frequency cavities for parametric amplification and optomechanics.” 2018. Thesis, University of California – Merced. Accessed January 20, 2021. http://www.escholarship.org/uc/item/8vz1r6hx.

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

MLA Handbook (7^th Edition):

Castelli, Alessandro Roberto. “Superconducting radio frequency cavities for parametric amplification and optomechanics.” 2018. Web. 20 Jan 2021.

Vancouver:

Castelli AR. Superconducting radio frequency cavities for parametric amplification and optomechanics. [Internet] [Thesis]. University of California – Merced; 2018. [cited 2021 Jan 20]. Available from: http://www.escholarship.org/uc/item/8vz1r6hx.

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

Council of Science Editors:

Castelli AR. Superconducting radio frequency cavities for parametric amplification and optomechanics. [Thesis]. University of California – Merced; 2018. Available from: http://www.escholarship.org/uc/item/8vz1r6hx

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

University of Sydney

28. Wu, Chujun. Silicon-on-insulator based optical microring resonator sensor and improvement methods .

Degree: 2018, University of Sydney

URL: http://hdl.handle.net/2123/19894

► Photonic sensing technologies offer unexceptionable features for taking high requirement measurement in a harsh environment. They inherit advantages such as fast speed and immunity from… (more)

▼ Photonic sensing technologies offer unexceptionable features for taking high requirement measurement in a harsh environment. They inherit advantages such as fast speed and immunity from electromagnetic interference from optical communications. In addition, with the silicon-on-insulator (SOI) technologies, chip scale optical sensors are capable of providing high sensitivity with an ultra-compact form factor. The motivation is derived from the high demand for sensors in the new era of the Data Age and the great potential of fast response, highly sensitive and ultra-compact photonic sensor. Furthermore, rapid sensor development puts forward a new prospect for many areas such as medical and health measurement, defence technology, and the internet of things. With all the advantages that SOI-based chip scale optical sensors provide, there are still shortcomings can be improving to provided much more capable sensing abilities from many aspects. With that in mind, this thesis will focus on SOI-based optical microring resonator, one of the most popular SOI-based optical structure for sensing purpose; and solutions for two shortcomings of the common SOI-based optical sensor. One of the solutions that will be mentioned in this thesis is intended to solve the issues of limited measurement speed and low resolution that caused by the way of the data analysis in the common SOI-based optical sensing system. The second purposed solutions in this thesis focused on the connection schemes of the SOI-based optical sensor; Common connection schemes of SOI-based optical chip needs at least two optical ports for coupling the light into and out of the silicon photonics chip which limits the ability to perform measurements at remote locations that are hard to be reached. Chapter 4 and 5 of this thesis contains detailed explorations of these shortcomings and solutions. An integrated photonic sensor based on optoelectronic oscillator with an on-chip sensing probe that is capable of realising highly sensitive and high-resolution optical sensing is presented in this thesis as a solution for the first shortcoming. The key component is an integrated SOI-based microring resonator which is used to implement a microwave photonic bandpass filter (MPBF) to effectively suppress the side modes of the optoelectronic oscillator (OEO) by more than 30dB, thus generating a peak RF signal that maps the detected optical change into a resulting shift in the oscillating frequency. As an application example, the proposed optical sensor system is employed to detect small changes in temperature, and experimental results demonstrate a highly sensitive optical temperature sensor with an achieved sensitivity of 7.7 GHz/°C. Moreover, the proposed sensing system revealed a 0.02°C measurement resolution which is a tenfold improvement compared with the modest resolution of 0.23°C seen by the conventional MPBF system without the OEO loop, rendering it highly suitable for diverse high-resolution sensing applications. With the purpose of reducing the size of the SOI-based…

Subjects/Keywords: Silicon-on-insulator; optical microring resonatore; Sensor; optoelectronic oscillator; optical chip

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APA (6^th Edition):

Wu, C. (2018). Silicon-on-insulator based optical microring resonator sensor and improvement methods . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/19894

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):

Wu, Chujun. “Silicon-on-insulator based optical microring resonator sensor and improvement methods .” 2018. Thesis, University of Sydney. Accessed January 20, 2021. http://hdl.handle.net/2123/19894.

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

MLA Handbook (7^th Edition):

Wu, Chujun. “Silicon-on-insulator based optical microring resonator sensor and improvement methods .” 2018. Web. 20 Jan 2021.

Vancouver:

Wu C. Silicon-on-insulator based optical microring resonator sensor and improvement methods . [Internet] [Thesis]. University of Sydney; 2018. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2123/19894.

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

Council of Science Editors:

Wu C. Silicon-on-insulator based optical microring resonator sensor and improvement methods . [Thesis]. University of Sydney; 2018. Available from: http://hdl.handle.net/2123/19894

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

Vanderbilt University

29. Mackanos, Mark Andrew. The effect of pulse structure on soft tissue laser ablation at mid-infrared wavelengths.

Degree: PhD, Biomedical Engineering, 2004, Vanderbilt University

URL: http://hdl.handle.net/1803/14855

► BIOMEDICAL ENGINEERING THE EFFECT OF PULSE STRUCTURE ON SOFT TISSUE LASER ABLATION AT MID-INFRARED WAVELENGTHS MARK ANDREW MACKANOS Dissertation under the direction of Professor E.… (more)

▼ BIOMEDICAL ENGINEERING THE EFFECT OF PULSE STRUCTURE ON SOFT TISSUE LASER ABLATION AT MID-INFRARED WAVELENGTHS MARK ANDREW MACKANOS Dissertation under the direction of Professor E. Duco Jansen A series of experimental investigations have demonstrated that targeting a mid-infrared Mark-III Free-Electron Laser to wavelengths near 6.45 ƒÝm results in tissue ablation with minimal collateral damage and substantial efficiency useful for human surgery. Thermodynamic reasoning suggests that the minimal collateral damage at this wavelength is due to the differential absorption of protein and water; which causes compromised tissue integrity by laser heating of the non-aqueous components prior to explosive vaporization. These properties are advantageous for surgery because they reduce the structural integrity of the tissue, thus reducing amount of energy needed for ablation. While the FEL, based on these findings, has been used successfully in eight human surgeries to date, it is unlikely that this laser will become broadly used clinically due to its expense and difficult implementation. Recent developments in conventional laser technology have provided access to this wavelength. While the average and peak power of these sources are still not equivalent to the FEL, recent data indicates that ablation studies are feasible. The research described here investigates the role of pulse structure with regards to soft tissue ablation to determine the feasibility of these sources as potential FEL replacements for clinical applications. Relevant parameters including the threshold radiant exposure and ablated crater depth were studied for comparison of the native FEL micropulse with a stretched FEL micropulse and a ZnGeP2 OPO. Brightfield imaging was used to analyze the effect of pulse structure on the dynamics of ablation, while histology on cornea and dermis was performed to study pulse effects on thermal damage. Mass spectrometry was also used to investigate whether non-linear effects are involved with the FEL micropulse in changing the chemical structure of proteins prior to ablation. The results of this analysis show that the micropulse structure of the FEL does not play a role in the efficient ablation of soft tissue with minimal collateral damage that has been shown previously, and alternative sources remain viable alternatives to the FEL. Advisors/Committee Members: Anita Mahadevan-Jansen (committee member), Karen M. Joos (committee member), Richard F. Haglund Jr. (committee member), Robert L. Galloway Jr. (committee member), E. Duco Jansen (Committee Chair).

Subjects/Keywords: Pulse Stretcher; Mouse Dermis; Optical Parametric Oscillator; Cornea; Laser Ablation; 6.45 microns; Free Electron Laser

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

APA (6^th Edition):

Mackanos, M. A. (2004). The effect of pulse structure on soft tissue laser ablation at mid-infrared wavelengths. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/14855

Chicago Manual of Style (16^th Edition):

Mackanos, Mark Andrew. “The effect of pulse structure on soft tissue laser ablation at mid-infrared wavelengths.” 2004. Doctoral Dissertation, Vanderbilt University. Accessed January 20, 2021. http://hdl.handle.net/1803/14855.

MLA Handbook (7^th Edition):

Mackanos, Mark Andrew. “The effect of pulse structure on soft tissue laser ablation at mid-infrared wavelengths.” 2004. Web. 20 Jan 2021.

Vancouver:

Mackanos MA. The effect of pulse structure on soft tissue laser ablation at mid-infrared wavelengths. [Internet] [Doctoral dissertation]. Vanderbilt University; 2004. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1803/14855.

Council of Science Editors:

Mackanos MA. The effect of pulse structure on soft tissue laser ablation at mid-infrared wavelengths. [Doctoral Dissertation]. Vanderbilt University; 2004. Available from: http://hdl.handle.net/1803/14855

30. Huff, Alison Aiko. Optical Trapping, Parametric Oscillations, and Active Learning.

Degree: Physics, 2018, University of California – Merced

URL: http://www.escholarship.org/uc/item/1sw5s3dr

► This dissertation consists of three distinct projects: optical trapping, parametrically-driven oscillator, and physics education research. We trapped trap poly(methyl methacrylate) (PMMA) microspheres using radiation pressure… (more)

Subjects/Keywords: Physics; Active Learning; Dual Beam Optical Trap; Mechanical Parametric Oscillator; Physics Education Research

…Research Group: to combine the fiber optical parametric oscillator with the dual-beam optical… …Parametric Oscillator Experiment for Undergraduates”. Presented at the March 2017 American Physical… …Learning Certificate, 2015 Abstract Optical Trapping, Parametric Oscillations, and Active… …Parametric Oscillator Codes 86 B.1 Driving the Pendulum… …3.9 49 Contour plot of the steady-state energy of the parametric oscillator as functions…

10 more images…

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APA (6^th Edition):

Huff, A. A. (2018). Optical Trapping, Parametric Oscillations, and Active Learning. (Thesis). University of California – Merced. Retrieved from http://www.escholarship.org/uc/item/1sw5s3dr

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):

Huff, Alison Aiko. “Optical Trapping, Parametric Oscillations, and Active Learning.” 2018. Thesis, University of California – Merced. Accessed January 20, 2021. http://www.escholarship.org/uc/item/1sw5s3dr.

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

MLA Handbook (7^th Edition):

Huff, Alison Aiko. “Optical Trapping, Parametric Oscillations, and Active Learning.” 2018. Web. 20 Jan 2021.

Vancouver:

Huff AA. Optical Trapping, Parametric Oscillations, and Active Learning. [Internet] [Thesis]. University of California – Merced; 2018. [cited 2021 Jan 20]. Available from: http://www.escholarship.org/uc/item/1sw5s3dr.

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

Council of Science Editors:

Huff AA. Optical Trapping, Parametric Oscillations, and Active Learning. [Thesis]. University of California – Merced; 2018. Available from: http://www.escholarship.org/uc/item/1sw5s3dr

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

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Open Access Theses and Dissertations