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Vanderbilt University
1.
Kammer, Michael Nolan.
Characterization of aptamer-small molecule interactions with backscattering interferometry.
Degree: MS, Biomedical Engineering, 2016, Vanderbilt University
URL: http://hdl.handle.net/1803/10696
► Aptamers are segments of single-strand DNA or RNA used in a wide array of applications, including sensors, therapeutics, and cellular process regulators. Aptamers can bind…
(more)
▼ Aptamers are segments of single-strand DNA or RNA used in a wide array of applications, including sensors, therapeutics, and cellular process regulators. Aptamers can bind many target species, including proteins, peptides, and small molecules (SM) with high affinity and specificity. They are advantageous because they can be identified in vitro by SELEX, and therefore produced rapidly and relatively economically using oligonucleotide synthesis. The use of aptamers as SM probes has experienced a recent rebirth, and because of their unique properties they represent an attractive alternative to antibodies. Current assay methodology for characterizing small molecule – aptamer binding is limited by either mass sensitivity, as in biolayer
interferometry (BLI) and surface plasmon resonance (SPR), or the need to use a fluorophore, as in thermophoresis. Here we report that backscattering
interferometry (BSI), a label-free and free-solution sensing technique, can be used to effectively characterize SM – aptamer interactions, providing Kd values on microliter sample quantities and at low nanomolar sensitivity. To demonstrate this capability we measured the aptamer affinity for three previously reported small molecules; bisphenol A, tenofover, and epirubicin showing BSI provided values consistent with those published previously. We then quantified the Kd values for aptamers to ampicillin, tetracycline and norepinephrine. All measurements produced R2 values > 0.95 and excellent signal to noise at target concentrations that enable true Kd values to be obtained. No immobilization or labeling chemistry was needed, expediting the assay which is also insensitive to the large relative mass difference between the interacting molecules.
Advisors/Committee Members: Darryl Bornhop (committee member), Frederick Haselton (Committee Chair).
Subjects/Keywords: Interferometry; Aptamers
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APA (6th Edition):
Kammer, M. N. (2016). Characterization of aptamer-small molecule interactions with backscattering interferometry. (Thesis). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/10696
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kammer, Michael Nolan. “Characterization of aptamer-small molecule interactions with backscattering interferometry.” 2016. Thesis, Vanderbilt University. Accessed February 24, 2021.
http://hdl.handle.net/1803/10696.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kammer, Michael Nolan. “Characterization of aptamer-small molecule interactions with backscattering interferometry.” 2016. Web. 24 Feb 2021.
Vancouver:
Kammer MN. Characterization of aptamer-small molecule interactions with backscattering interferometry. [Internet] [Thesis]. Vanderbilt University; 2016. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1803/10696.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kammer MN. Characterization of aptamer-small molecule interactions with backscattering interferometry. [Thesis]. Vanderbilt University; 2016. Available from: http://hdl.handle.net/1803/10696
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rhodes University
2.
Nunhokee, Chuneeta Devi.
Link between ghost artefacts, source suppression and incomplete calibration sky models.
Degree: Faculty of Science, Physics and Electronics, 2015, Rhodes University
URL: http://hdl.handle.net/10962/d1017900
► Calibration is a fundamental step towards producing radio interferometric images. However, naive calibration produces calibration artefacts, in the guise of spurious emission, buried in the…
(more)
▼ Calibration is a fundamental step towards producing radio interferometric images. However, naive calibration produces calibration artefacts, in the guise of spurious emission, buried in the thermal noise. This work investigates these calibration artefacts, henceforth referred to as “ghosts”. A 21 cm observation with the Westerbork Synthesis Radio Telescope yielded similar ghost sources, and it was anticipated that they were due to calibrating with incomplete sky models. An analytical ghost distribution of a two-source scenario is derived to substantiate this theory and to seek answers to the related bewildering features (regular ghost pattern, points spread function-like sidelobes, independent of model flux). The theoretically predicted ghost distribution qualitatively matches with the observational ones and shows high dependence on the array geometry. The theory draws the conclusion that both the ghost phenomenon and suppression of the unmodelled flux have the same root cause. In addition, the suppression of the unmodelled flux is studied as functions of unmodelled flux, differential gain solution interval and the number of sources subjected to direction-dependent gains. These studies summarise that the suppression rate is constant irrespective of the degree of incompleteness of the calibration sky model. In the presence of a direction-dependent effect, the suppression drastically increases; however, this increase can be compensated for by using longer solution intervals.
Subjects/Keywords: Interferometry; Calibration
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APA (6th Edition):
Nunhokee, C. D. (2015). Link between ghost artefacts, source suppression and incomplete calibration sky models. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1017900
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Nunhokee, Chuneeta Devi. “Link between ghost artefacts, source suppression and incomplete calibration sky models.” 2015. Thesis, Rhodes University. Accessed February 24, 2021.
http://hdl.handle.net/10962/d1017900.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nunhokee, Chuneeta Devi. “Link between ghost artefacts, source suppression and incomplete calibration sky models.” 2015. Web. 24 Feb 2021.
Vancouver:
Nunhokee CD. Link between ghost artefacts, source suppression and incomplete calibration sky models. [Internet] [Thesis]. Rhodes University; 2015. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/10962/d1017900.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nunhokee CD. Link between ghost artefacts, source suppression and incomplete calibration sky models. [Thesis]. Rhodes University; 2015. Available from: http://hdl.handle.net/10962/d1017900
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology
3.
Wall, J.P. (author).
Merging active and passive surface wave data with interferometry by multidimensional deconvolution.
Degree: 2011, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:7e3bd82c-13a7-4288-b2cf-61eb67ade287
► Seismic interferometry is a technique by which the Green’s function (or impulse response) between two receivers can be acquired from the crosscorrelations of wavefield responses…
(more)
▼ Seismic interferometry is a technique by which the Green’s function (or impulse response) between two receivers can be acquired from the crosscorrelations of wavefield responses at these receivers. Recent developments of this method has led researchers to exploit active as well as passive seismic wavefields to retrieve surface wave Green’s functions by crosscorrelation. The primary objective of these applications has been to gain near surface resolution from the high frequency content of the active data while gaining greater depth resolution from the low frequency content of the passive data. In these applications however, a Green’s function is retrieved for each data type and therefore a matching filter or a form of joint inversion is required to benefit from the additional bandwidth of both data types. Interferometry by multidimensional deconvolution (MDD) is a relatively new method of Green’s function retrieval that provides several advantages over interferometry by crosscorrelation. This thesis proposes a new method of merging active and passive data during the process of MDD. A primary advantage of this method over the alternatives is that the source signatures are disregarded and only a single Green’s function with the combined characteristics of both the active and passive data is retrieved. Using numerical modelling it is demonstrated that a broadband Green’s function response can be retrieved from combined active and passive data without the need to compensate for the differences in source signatures or variations in amplitude. Merging active and passive data prior to deconvolution may in fact improve the retrieved response due to the additional illumination provided by the supplementary data. In addition to expanding the bandwidth of the retrieved response, this method is shown to be capable of using data from one source type to spatially infill gaps in illumination in another source type when the bandwidth of the two are comparable.
Applied Geophysics
Geoscience and Engineering
Civil Engineering and Geosciences
Advisors/Committee Members: Wapenaar, C.P.A. (mentor).
Subjects/Keywords: seismic; interferometry
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
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Manager
APA (6th Edition):
Wall, J. P. (. (2011). Merging active and passive surface wave data with interferometry by multidimensional deconvolution. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:7e3bd82c-13a7-4288-b2cf-61eb67ade287
Chicago Manual of Style (16th Edition):
Wall, J P (author). “Merging active and passive surface wave data with interferometry by multidimensional deconvolution.” 2011. Masters Thesis, Delft University of Technology. Accessed February 24, 2021.
http://resolver.tudelft.nl/uuid:7e3bd82c-13a7-4288-b2cf-61eb67ade287.
MLA Handbook (7th Edition):
Wall, J P (author). “Merging active and passive surface wave data with interferometry by multidimensional deconvolution.” 2011. Web. 24 Feb 2021.
Vancouver:
Wall JP(. Merging active and passive surface wave data with interferometry by multidimensional deconvolution. [Internet] [Masters thesis]. Delft University of Technology; 2011. [cited 2021 Feb 24].
Available from: http://resolver.tudelft.nl/uuid:7e3bd82c-13a7-4288-b2cf-61eb67ade287.
Council of Science Editors:
Wall JP(. Merging active and passive surface wave data with interferometry by multidimensional deconvolution. [Masters Thesis]. Delft University of Technology; 2011. Available from: http://resolver.tudelft.nl/uuid:7e3bd82c-13a7-4288-b2cf-61eb67ade287

Montana State University
4.
Anderson, Aaron Paul.
Simulating heat generation in the monoblock laser using finite element analysis.
Degree: MS, College of Engineering, 2011, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/823
► Under photonic pumping Nd:YAG (Neodymium Yttrium Aluminum Garnet) generates a significant amount of heat as a result of quantum deficit and non-radiative absorption sites, this…
(more)
▼ Under photonic pumping Nd:YAG (Neodymium Yttrium Aluminum Garnet) generates a significant amount of heat as a result of quantum deficit and non-radiative absorption sites, this excess heat results in thermal deformation and a shift in the index of refraction of Nd:YAG causing a net change in Optical Path Length (OPL). Finite Element Analysis (FEA) techniques provide a powerful approach for digital design and analysis of complex thermo-mechanical systems; unfortunately, finite element software packages do not use light as a traditional loading mechanism nor track optical properties. This research has sought to establish a methodology to interface thermal loading as a result of photonic conversion with traditional FEA practices and track the resulting optical effects. The ABAQUS software package interfaced with a python driven input procedure has been used to develop a representation of photonic loading in the FEA environment. This modeling method has been calibrated utilizing
interferometry imaging of a pulsed Nd:YAG system tracking the resultant OPL and comparing these results to FEA predictions. FEA predictions were developed that matched experimental measurements within 0.5 waves at the 1064nm laser line for Nd:YAG.
Advisors/Committee Members: Chairperson, Graduate Committee: David A. Miller (advisor).
Subjects/Keywords: Lasers.; Interferometry.
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APA ·
Chicago ·
MLA ·
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APA (6th Edition):
Anderson, A. P. (2011). Simulating heat generation in the monoblock laser using finite element analysis. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/823
Chicago Manual of Style (16th Edition):
Anderson, Aaron Paul. “Simulating heat generation in the monoblock laser using finite element analysis.” 2011. Masters Thesis, Montana State University. Accessed February 24, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/823.
MLA Handbook (7th Edition):
Anderson, Aaron Paul. “Simulating heat generation in the monoblock laser using finite element analysis.” 2011. Web. 24 Feb 2021.
Vancouver:
Anderson AP. Simulating heat generation in the monoblock laser using finite element analysis. [Internet] [Masters thesis]. Montana State University; 2011. [cited 2021 Feb 24].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/823.
Council of Science Editors:
Anderson AP. Simulating heat generation in the monoblock laser using finite element analysis. [Masters Thesis]. Montana State University; 2011. Available from: https://scholarworks.montana.edu/xmlui/handle/1/823

University of Sydney
5.
Michie, Andrew M.
Sensing and interferometry, including design and characterisation of special optical fibres
.
Degree: 2008, University of Sydney
URL: http://hdl.handle.net/2123/5784
This thesis presents my work in the area of optical fibre sensing, and optical fibre design and characterisation along with the interferometric and signal processing techniques that were developed along the way.
Subjects/Keywords: Interferometry
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❌
APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Michie, A. M. (2008). Sensing and interferometry, including design and characterisation of special optical fibres
. (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/5784
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Michie, Andrew M. “Sensing and interferometry, including design and characterisation of special optical fibres
.” 2008. Thesis, University of Sydney. Accessed February 24, 2021.
http://hdl.handle.net/2123/5784.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Michie, Andrew M. “Sensing and interferometry, including design and characterisation of special optical fibres
.” 2008. Web. 24 Feb 2021.
Vancouver:
Michie AM. Sensing and interferometry, including design and characterisation of special optical fibres
. [Internet] [Thesis]. University of Sydney; 2008. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/2123/5784.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Michie AM. Sensing and interferometry, including design and characterisation of special optical fibres
. [Thesis]. University of Sydney; 2008. Available from: http://hdl.handle.net/2123/5784
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Arizona
6.
Tian, Xiaobo.
Snapshot Interferometric Systems with Polarization Cameras
.
Degree: 2020, University of Arizona
URL: http://hdl.handle.net/10150/641721
► Interferometry has been established as an important tool for a variety of applications, including physics, industrial manufacturing, biology, and medicine. Phase-shifting interferometry is one of…
(more)
▼ Interferometry has been established as an important tool for a variety of applications, including physics, industrial manufacturing, biology, and medicine. Phase-shifting
interferometry is one of the most general methods in interferometric systems for its high measurement accuracy, rapid measurement, good results for low contrast fringes, and independence of irradiance variations across the pupil. In most cases, the phase calculation error caused by environmental noise is the primary error. Comparing with temporal phase-shifting, which introduces a phase-shift sequentially, spatial phase-shifting methods that capture phase-shifted interferograms simultaneously can significantly reduce the influence of environmental noise.
In this dissertation, we present several snapshot phase-shifting interferometric systems with the pixelated mask spatial phase-shifting technique using a polarization camera. As a spatial phase-shifting method, the pixelated polarization camera method has the advantages of a common path configuration, compact design, achromatic over a very wide range, and fixed spatial interference patterns, which makes it suitable for dynamic measurement. Various applications based on this technique are presented, including on-machine
interferometry, single-shot multi-wavelength
interferometry, snapshot quantitative phase microscopy, and freeform surface metrology. The principles and applications are theoretical analyzed and experimental demonstrated for each system.
Advisors/Committee Members: Liang, Rongguang (advisor), Pau, Stanley (committeemember), Kim, Daewook (committeemember).
Subjects/Keywords: Interferometry;
Metrology;
Polarization
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APA ·
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APA (6th Edition):
Tian, X. (2020). Snapshot Interferometric Systems with Polarization Cameras
. (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/641721
Chicago Manual of Style (16th Edition):
Tian, Xiaobo. “Snapshot Interferometric Systems with Polarization Cameras
.” 2020. Doctoral Dissertation, University of Arizona. Accessed February 24, 2021.
http://hdl.handle.net/10150/641721.
MLA Handbook (7th Edition):
Tian, Xiaobo. “Snapshot Interferometric Systems with Polarization Cameras
.” 2020. Web. 24 Feb 2021.
Vancouver:
Tian X. Snapshot Interferometric Systems with Polarization Cameras
. [Internet] [Doctoral dissertation]. University of Arizona; 2020. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/10150/641721.
Council of Science Editors:
Tian X. Snapshot Interferometric Systems with Polarization Cameras
. [Doctoral Dissertation]. University of Arizona; 2020. Available from: http://hdl.handle.net/10150/641721

University of Cambridge
7.
Shimwell, Timothy William.
Blind and pointed Sunyaev-Zel'dovich observations with the Arcminute Microkelvin Imager.
Degree: PhD, 2011, University of Cambridge
URL: http://www.dspace.cam.ac.uk/handle/1810/241039https://www.repository.cam.ac.uk/bitstream/1810/241039/2/license.txt
;
https://www.repository.cam.ac.uk/bitstream/1810/241039/5/thesis.pdf.txt
;
https://www.repository.cam.ac.uk/bitstream/1810/241039/6/thesis.pdf.jpg
► In this thesis I discuss my work on the Arcminute Microkelvin Imager (AMI). I focus on the detection of Sunyaev-Zel’dovich (SZ) signatures at 14-18GHz. Once…
(more)
▼ In this thesis I discuss my work on the Arcminute Microkelvin Imager (AMI). I focus on the detection of Sunyaev-Zel’dovich (SZ) signatures at 14-18GHz.
Once the background science and operation of the instrument are described I proceed to present my contribution to the calibration of AMI, including: primary beam measurements; refinements to the known antenna geometry and flagging geostationary satellite interference. This is followed by an outline of the software that I have developed to subtract sources from visibilities, concatenate data from multiple observations, simulate data, and perform jack-knife tests to evaluate the magnitude of systematic errors.
The Bayesian analysis that I use to obtain parameter estimates and to quantify the significance of putative SZ detections is described. I perform realistic simulations of clusters and use these to characterise
the analysis. I then, for the first time, apply the analysis to data from the AMI blind cluster survey. I identify several previously unknown
SZ decrements.
Finally, I conduct pointed observations towards a high luminosity subsample of eight clusters from the Local Cluster Substructure Survey
(LoCuSS). For each of these I provide probability distributions of parameters such as mass, radius, and temperature. I compare my
results to those in the literature and find an overall agreement.
Subjects/Keywords: Observationjal cosmology; Interferometry
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APA (6th Edition):
Shimwell, T. W. (2011). Blind and pointed Sunyaev-Zel'dovich observations with the Arcminute Microkelvin Imager. (Doctoral Dissertation). University of Cambridge. Retrieved from http://www.dspace.cam.ac.uk/handle/1810/241039https://www.repository.cam.ac.uk/bitstream/1810/241039/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/6/thesis.pdf.jpg
Chicago Manual of Style (16th Edition):
Shimwell, Timothy William. “Blind and pointed Sunyaev-Zel'dovich observations with the Arcminute Microkelvin Imager.” 2011. Doctoral Dissertation, University of Cambridge. Accessed February 24, 2021.
http://www.dspace.cam.ac.uk/handle/1810/241039https://www.repository.cam.ac.uk/bitstream/1810/241039/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/6/thesis.pdf.jpg.
MLA Handbook (7th Edition):
Shimwell, Timothy William. “Blind and pointed Sunyaev-Zel'dovich observations with the Arcminute Microkelvin Imager.” 2011. Web. 24 Feb 2021.
Vancouver:
Shimwell TW. Blind and pointed Sunyaev-Zel'dovich observations with the Arcminute Microkelvin Imager. [Internet] [Doctoral dissertation]. University of Cambridge; 2011. [cited 2021 Feb 24].
Available from: http://www.dspace.cam.ac.uk/handle/1810/241039https://www.repository.cam.ac.uk/bitstream/1810/241039/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/6/thesis.pdf.jpg.
Council of Science Editors:
Shimwell TW. Blind and pointed Sunyaev-Zel'dovich observations with the Arcminute Microkelvin Imager. [Doctoral Dissertation]. University of Cambridge; 2011. Available from: http://www.dspace.cam.ac.uk/handle/1810/241039https://www.repository.cam.ac.uk/bitstream/1810/241039/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/241039/6/thesis.pdf.jpg

University of Florida
8.
Chilton, Andrew D.
Technology Development for the LISA Mission.
Degree: PhD, Physics, 2019, University of Florida
URL: https://ufdc.ufl.edu/UFE0054002
► The Laser Interferometer Space Antena (LISA) mission is a future gravitational wave observatory that will detect sources of gravitational radiation not currently accessable to other…
(more)
▼ The Laser Interferometer Space Antena (LISA) mission is a future gravitational wave observatory that will detect sources of gravitational radiation not currently accessable to other experimental facilities such as LIGO and VIRGO. Among these sources are supermassive black hole binaries, extreme mass ratio inspirals, compact galactic binaries, and possibly relic gravitational waves from the big bang. In order to detect these sources, LISA will deploy a constellation of three satellites, each of which form the vertices of an equilateral triangle 2.5 million km to a side. The satellites contain proof masses the motion of which will be proportional to incident gravitational wave strain, which is on the order of 10
-21. Therefore LISA must measure their motion with high enough precision to detect the tiny influence of gravitational waves, and also ensure that the measurement methods and environment do not induce spurious motion above the level of gravitational waves. For LISA, this means that the sensing system must operate at the pm~Hz
-1/2 level, and spurious forces must be suppressed to the fN~Hz
-1/2 level. This dissertation describes research conducted on the technology necessary to ensure that this measurement goal is met. ( en )
Advisors/Committee Members: Mueller,Guido (committee chair), Fry,James N (committee member), Rinzler,Andrew Gabriel (committee member), Conklin,John (committee member).
Subjects/Keywords: gravitation – interferometry – laser
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APA (6th Edition):
Chilton, A. D. (2019). Technology Development for the LISA Mission. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0054002
Chicago Manual of Style (16th Edition):
Chilton, Andrew D. “Technology Development for the LISA Mission.” 2019. Doctoral Dissertation, University of Florida. Accessed February 24, 2021.
https://ufdc.ufl.edu/UFE0054002.
MLA Handbook (7th Edition):
Chilton, Andrew D. “Technology Development for the LISA Mission.” 2019. Web. 24 Feb 2021.
Vancouver:
Chilton AD. Technology Development for the LISA Mission. [Internet] [Doctoral dissertation]. University of Florida; 2019. [cited 2021 Feb 24].
Available from: https://ufdc.ufl.edu/UFE0054002.
Council of Science Editors:
Chilton AD. Technology Development for the LISA Mission. [Doctoral Dissertation]. University of Florida; 2019. Available from: https://ufdc.ufl.edu/UFE0054002

University of New Mexico
9.
Méndez Ruiz, Cesar.
Probing ultra-subwavelength inhomogeneities embedded within dielectric targets using photonic nanojets.
Degree: Electrical and Computer Engineering, 2011, University of New Mexico
URL: http://hdl.handle.net/1928/13158
► The use of optics to detect ultra-subwavelength features embedded within structures is a hot topic for a broad diversity of applications like spectroscopy, nanotechnology, microscopy,…
(more)
▼ The use of optics to detect ultra-subwavelength features embedded within structures is a hot topic for a broad diversity of applications like spectroscopy, nanotechnology, microscopy, and optical data storage discs. Conventional objective lens based optical systems have a fundamental limit on the best possible resolution of about 200 \u03b7m due to the diffraction of light as it propagates into the far-field. There already exist several near-field techniques with the capability to overcome this limitation, but each of these systems has certain drawbacks related to the complexity of the system or to limitations imposed by the system. A photonic nanojet is a very particular beam of light that can provide a practical way to overcome the diffraction limit inherent to far-field techniques. A nanojet is an electromagnetic field envelope formed on the shadow-side surface of a plane-wave-illuminated dielectric microsphere of diameter larger than the wavelength and with refractive index contrast relative to the background medium of less than 2:1. It can maintain a subwavelength transversal beamwidth for distances greater than 2 wavelengths away from the surface of the generating microsphere. This Dissertation provides a computational test of the hypothesis that the backscattered spectrum resulting from photonic nanojet illumination of a three-dimensional (3-D) dielectric structure can reveal the presence and location of ultra-subwavelength, nanoscale-thin weakly contrasting dielectric inhomogeneities within dielectric targets. The effect of surface roughness on the illuminated side of the target is analyzed, and targets ranging from simple dielectric slabs to complex biological cells are studied. The present work is performed through computational electrodynamics modeling based upon the rigorous, large-scale solution of Maxwells equations. Specifically, the 3-D finite-difference time-domain (FDTD) method is employed to test the above hypothesis.'
Advisors/Committee Members: Simpson, Jamesina, Christodoulou, Christos, Taflove, Allen, Han, Sang.
Subjects/Keywords: Nanophotonics.; Holographic interferometry.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Méndez Ruiz, C. (2011). Probing ultra-subwavelength inhomogeneities embedded within dielectric targets using photonic nanojets. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/13158
Chicago Manual of Style (16th Edition):
Méndez Ruiz, Cesar. “Probing ultra-subwavelength inhomogeneities embedded within dielectric targets using photonic nanojets.” 2011. Doctoral Dissertation, University of New Mexico. Accessed February 24, 2021.
http://hdl.handle.net/1928/13158.
MLA Handbook (7th Edition):
Méndez Ruiz, Cesar. “Probing ultra-subwavelength inhomogeneities embedded within dielectric targets using photonic nanojets.” 2011. Web. 24 Feb 2021.
Vancouver:
Méndez Ruiz C. Probing ultra-subwavelength inhomogeneities embedded within dielectric targets using photonic nanojets. [Internet] [Doctoral dissertation]. University of New Mexico; 2011. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1928/13158.
Council of Science Editors:
Méndez Ruiz C. Probing ultra-subwavelength inhomogeneities embedded within dielectric targets using photonic nanojets. [Doctoral Dissertation]. University of New Mexico; 2011. Available from: http://hdl.handle.net/1928/13158

Cape Peninsula University of Technology
10.
Fenni, Magano Tweetheni Shidhika.
Estimation of the direction of arrival of signals from nano-satellites using antenna interferometry
.
Degree: 2014, Cape Peninsula University of Technology
URL: http://etd.cput.ac.za/handle/20.500.11838/1175
► The thesis reports on the evaluation and comparison of various signal processing algorithms for estimating the direction of arrival (DOA) of a high frequency (HF)…
(more)
▼ The thesis reports on the evaluation and comparison of various signal processing algorithms
for estimating the direction of arrival (DOA) of a high frequency (HF) beacon signal from a
CubeSat in Low Earth Orbit (LEO). The DOA of the HF beacon signal is expressed in terms
of the two angles, azimuth ( α ) and elevation ( ). The azimuth and elevation angles of the
received HF signal are calculated from the phase differences between signals observed at
three elements of an L-shaped crossed-loop antenna array. The algorithms which were
evaluated are the Zero Crossing (ZC), Cross Correlation (CC), Fast Fourier Transform (FFT)
and Cross Power Spectral Density (CPSD) algorithms. A theoretical analysis was done to
demonstrate that the phase differences at the radio frequency (RF) of the beacon are
propagated to the baseband signals. The algorithms were thus tested using simulated
baseband signals as would be derived from the RF signals intercepted by the three elements
of an L-shaped crossed-loop antenna array. Gaussian noise with a given signal-to-noise ratio
(SNR) was added to the simulated baseband signals. The algorithms were implemented in
MATLAB. The criteria for the selection of the best algorithm were accuracy and speed. The
standard deviation (SD) of the azimuth and elevation errors was used to measure the
performance accuracy of each algorithm, while the computational time for a given number of
samples and runs was used to express the speed of each algorithm.
First the ZC, CC, FFT and CPSD algorithms were evaluated for various SNR values, and
compared with respect to SD of the azimuth and elevation errors. The analysis of the
simulations demonstrate that the FFT and CPSD algorithms outperform the ZC and CC
algorithms by estimating the DOA with a small SD of errors even at the low SNR of 0 dB,
where the noise amplitude is the same as the signal amplitude. The ZC algorithm estimates
the DOA with a large SD of error at low SNR due to multiple ZC points occurring during the
same cycle. The ZC algorithm breaks down when the SNR decreases below 35 dB. The
accuracy of the ZC algorithm depends on the method by which the ZC points are detected.
The CC algorithm breaks down when the SNR decreases below 10 dB. The CPSD and FFT
algorithms break down when the SNR decreases below – 20 dB. However, at a high SNR of
40 dB and above, all the algorithms estimate the DOA with a SD of error smaller than 1˚ for
the azimuth and elevation. Next, the ZC, CC, FFT and CPSD algorithms were compared with
respect to computation time. The FFT was found to be the fastest algorithm. Although the
CPSD and the FFT algorithms reach the same accuracy in the estimation of the DOA, the
FFT was selected as the optimum algorithm due to its better computation time.
Recommendations are made regarding the implementation of the proposed algorithms for
real signals from the HF direction finding (DF) array. At the time of submission of this thesis,
such signals were not yet available.
Subjects/Keywords: Antennas (Electronics);
Interferometry;
Satellites
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fenni, M. T. S. (2014). Estimation of the direction of arrival of signals from nano-satellites using antenna interferometry
. (Thesis). Cape Peninsula University of Technology. Retrieved from http://etd.cput.ac.za/handle/20.500.11838/1175
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Fenni, Magano Tweetheni Shidhika. “Estimation of the direction of arrival of signals from nano-satellites using antenna interferometry
.” 2014. Thesis, Cape Peninsula University of Technology. Accessed February 24, 2021.
http://etd.cput.ac.za/handle/20.500.11838/1175.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Fenni, Magano Tweetheni Shidhika. “Estimation of the direction of arrival of signals from nano-satellites using antenna interferometry
.” 2014. Web. 24 Feb 2021.
Vancouver:
Fenni MTS. Estimation of the direction of arrival of signals from nano-satellites using antenna interferometry
. [Internet] [Thesis]. Cape Peninsula University of Technology; 2014. [cited 2021 Feb 24].
Available from: http://etd.cput.ac.za/handle/20.500.11838/1175.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Fenni MTS. Estimation of the direction of arrival of signals from nano-satellites using antenna interferometry
. [Thesis]. Cape Peninsula University of Technology; 2014. Available from: http://etd.cput.ac.za/handle/20.500.11838/1175
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Ryerson University
11.
Mousavi, Seyyed Arash.
Experimental Investigation of Thermal Diffusion in Binary and Ternary Hydrocarbon Mixtures.
Degree: 2016, Ryerson University
URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A4930
► In a multi-component liquid mixture, the process of disassociation of the components induced by thermal gradient is called thermal diffusion or Soret effect. This effect…
(more)
▼ In a multi-component liquid mixture, the process of disassociation of the components induced by thermal gradient is called thermal diffusion or Soret effect. This effect plays a crucial role in separation of the components in hydrocarbon mixtures of oil. Accordingly, the main goal of this study is to experimentally investigate the Soret effect in binary and ternary hydrocarbon mixtures. Optical interferometry technique with Mach-Zehnder scheme was used to conduct the experiments. The interferometry techniques are not intrusive and the separation of the components in the mixture is not affected by the measurement instrument. A Soret cell is defined as a cubic cavity where the sample mixture is placed in it and, the separation of the components takes place in the cell by heating it from the above. Soret cells are used in convectionless experiments and natural convections are undesirable. The Soret cell used in space experiments was re-designed and optimized for ground-based experiments to avoid the natural convections. Computational studies
were made on the both cells to obtain the temperature and velocity fields. Then a set of thermal diffusion experiments conducted in order to compare the performance of the cells. The results shows that the induced convective motions in the second cell are significantly weaker than those in the previous cell which is desirable.
In the next step, the effect of the inclination of the cell on the thermal diffusion was studied. First numerical analysis was made to find the velocity and temperature fields in different inclinations and then a set of experiments was performed and the concentration distribution of the components in a binary mixture in different inclinations of the cell was found.
Finally, ground based experiments were performed to study the thermal diffusion in five ternary hydrocarbon mixtures. Optical interferometry with Mach-Zehnder scheme using two laser sources with different wavelengths was used. The Soret information of one of the mixtures is available in the literature and this mixture was studied here to validate the present experimental setup. The temperature and concentration of the mixtures were measured successfully in the Soret cell and a table of the measured Soret coefficient were provided.
Subjects/Keywords: Hydrocarbons; Interferometry; Thermal diffusivity – Testing
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mousavi, S. A. (2016). Experimental Investigation of Thermal Diffusion in Binary and Ternary Hydrocarbon Mixtures. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A4930
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mousavi, Seyyed Arash. “Experimental Investigation of Thermal Diffusion in Binary and Ternary Hydrocarbon Mixtures.” 2016. Thesis, Ryerson University. Accessed February 24, 2021.
https://digital.library.ryerson.ca/islandora/object/RULA%3A4930.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mousavi, Seyyed Arash. “Experimental Investigation of Thermal Diffusion in Binary and Ternary Hydrocarbon Mixtures.” 2016. Web. 24 Feb 2021.
Vancouver:
Mousavi SA. Experimental Investigation of Thermal Diffusion in Binary and Ternary Hydrocarbon Mixtures. [Internet] [Thesis]. Ryerson University; 2016. [cited 2021 Feb 24].
Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A4930.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mousavi SA. Experimental Investigation of Thermal Diffusion in Binary and Ternary Hydrocarbon Mixtures. [Thesis]. Ryerson University; 2016. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A4930
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Rochester
12.
Fuerschbach, Kyle.
Freeform, φ-polynomial optical surfaces : optical design,
fabrication and assembly.
Degree: PhD, 2014, University of Rochester
URL: http://hdl.handle.net/1802/28531
► Freeform optical surfaces are creating exciting new opportunities in optics for design, fabrication, metrology, and assembly. While the term freeform is currently being applied over…
(more)
▼ Freeform optical surfaces are creating exciting new
opportunities in optics for design, fabrication, metrology, and
assembly. While the term freeform is currently being applied over a
broad range of surface shapes, in our research on imaging with
freeform optical surfaces, a freeform is a surface whose sag varies
not only with the radial component but also with the azimuthal
component, φ, also known as a φ-polynomial optical surface.
Interestingly, these surfaces are readily fabricated with
techniques like single point diamond turning; however, challenges
remain in their optimization during optical design and
characterization after fabrication. </br>
In this
dissertation, we propose a more effective optical design approach
based in nodal aberration theory that considers the aberrations
induced by a φ-polynomial optical surface up to sixth order.
Specifically, when a φ-polynomial overlay is placed on a surface
away from the aperture stop, there is both a field constant and
field dependent contribution to the net aberration field. These
findings are validated through the design, implementation, and
wavefront measurement of an aberration generating Schmidt telescope
that employs a custom fabricated φ-polynomial plate. The measured
wavefront behavior is in good agreement with the theoretical
predictions of nodal aberration theory throughout the field of
view. </br>
The design methods are also applied
to a specific example: a wide field, fast focal ratio, long wave
infrared, unobscured reflective imager. The system employs three,
tilted φ-polynomial surfaces to provide diffraction limited
performance throughout the field of view. The surfaces were
fabricated with diamond turning and a novel metrology approach
based on an inteferometric null is proposed for characterizing the
figure error of the fabricated surfaces. A mechanical design is
also presented for the housing structure that simplifies the system
assembly. The as-built optical system maintains diffraction limited
performance throughout the field of view. </br>
The work conducted in this dissertation provides a foundation for
the efficient design of optical systems employing freeform surfaces
and demonstrates that a system based on freeform surfaces is
realizable in the long wave infrared and may be extended to shorter
wavelength regimes.
Subjects/Keywords: Aberrations; Alignment; Freeform; Interferometry; Telescopes
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fuerschbach, K. (2014). Freeform, φ-polynomial optical surfaces : optical design,
fabrication and assembly. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/28531
Chicago Manual of Style (16th Edition):
Fuerschbach, Kyle. “Freeform, φ-polynomial optical surfaces : optical design,
fabrication and assembly.” 2014. Doctoral Dissertation, University of Rochester. Accessed February 24, 2021.
http://hdl.handle.net/1802/28531.
MLA Handbook (7th Edition):
Fuerschbach, Kyle. “Freeform, φ-polynomial optical surfaces : optical design,
fabrication and assembly.” 2014. Web. 24 Feb 2021.
Vancouver:
Fuerschbach K. Freeform, φ-polynomial optical surfaces : optical design,
fabrication and assembly. [Internet] [Doctoral dissertation]. University of Rochester; 2014. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1802/28531.
Council of Science Editors:
Fuerschbach K. Freeform, φ-polynomial optical surfaces : optical design,
fabrication and assembly. [Doctoral Dissertation]. University of Rochester; 2014. Available from: http://hdl.handle.net/1802/28531

University of Rochester
13.
Person, Steven M.
Optical methods for nanoparticle detection and
imaging.
Degree: PhD, 2014, University of Rochester
URL: http://hdl.handle.net/1802/28897
► As the size of particulate matter decreases, individual particles are both more difficult to detect and show unique scattering properties. This thesis presents methods for…
(more)
▼ As the size of particulate matter decreases,
individual particles are both more
difficult to detect and show
unique scattering properties. This thesis presents methods
for
optically detecting and imaging single nanoparticles and
demonstrates the
directional scattering properties of
semiconductor nanoparticles. The first section describes
a
real-time interferometric method using multiple wavelengths to both
detect
and classify single nanoparticles in solution. A mixture of
colloidal 60nm diameter
Ag and 80nm diameter Au nanoparticles are
identified within a 1 ms detection
window. Detection sensitivity
is limited by phase variations in the signal and two
phase
sensitive interferometric measurement techniques are proposed to
improve the
performance.
In the second part of the thesis, GaAs
nanoparticles are fabricated on a fused silica
substrate using
epitaxial lift-o and e-beam lithography. Recent theoretical work
has
predicted a suppression in the backscattering intensity in
high refractive index semiconductor
nanoparticles caused by
interference between electric and magnetic dipole
Mie resonances.
Measurements of the fabricated GaAs particles show a suppressed
backscattering at λ = 725nm agreeing with the modeled scattering
properties and
providing the first experimental verification of
dipole interference in the visible spectrum.
Potential
applications for these highly directional scatterers include
structured
anti-reflection coatings and low-loss optical antennas
for enhancing magnetic dipole
interactions.
Finally, a
point-scanning confocal microscopy system is developed using a
diamond
turned ellipsoidal mirror, with a numerical aperture of
~1, as an illumination
and collection objective. The focal
properties are modeled using the Richards-Wolf
integrals and
alignment challenges are discussed. The imaging system wavefront
performance
is measured in an interferometer and the expected
aberrated focal spot is
simulated. A 40nm fluorescent nanoparticle
is raster scanned through the focus to
verify the measured
performance. The tested system is the first confocal microscope
implementing an ellipsoidal mirror as an imaging objective and
provides high resolution,
chromatic aberration free imagery of
nanoparticles and nanostructures on
opaque substrates. An
additional spherical reference surface is proposed to monitor
and
simplify the system alignment.
Subjects/Keywords: Interferometry; Mie theory; Nanoparticle; Scattering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Person, S. M. (2014). Optical methods for nanoparticle detection and
imaging. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/28897
Chicago Manual of Style (16th Edition):
Person, Steven M. “Optical methods for nanoparticle detection and
imaging.” 2014. Doctoral Dissertation, University of Rochester. Accessed February 24, 2021.
http://hdl.handle.net/1802/28897.
MLA Handbook (7th Edition):
Person, Steven M. “Optical methods for nanoparticle detection and
imaging.” 2014. Web. 24 Feb 2021.
Vancouver:
Person SM. Optical methods for nanoparticle detection and
imaging. [Internet] [Doctoral dissertation]. University of Rochester; 2014. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1802/28897.
Council of Science Editors:
Person SM. Optical methods for nanoparticle detection and
imaging. [Doctoral Dissertation]. University of Rochester; 2014. Available from: http://hdl.handle.net/1802/28897

University of Rochester
14.
Puranik, Rohit.
Corrosion in confinement.
Degree: PhD, 2018, University of Rochester
URL: http://hdl.handle.net/1802/34132
► In the context of localized corrosion events such as pitting, the exposure of the test surface to bulk environments can result in the corrosion products…
(more)
▼ In the context of localized corrosion events such
as pitting, the exposure of the test surface to bulk environments
can result in the corrosion products being easily diffused into the
bulk electrolyte solution. Hence, the products of localized
corrosion reactions make limited impact on the overall corrosion
process in such environments. However, the presence of a geometric
confinement close to the test surface can entrap these products
near the surface. As a result, a corrosion product that would
otherwise reach insignificant concentrations can now accumulate to
reach concentrations significant enough to possibly influence
secondary chemical reactions within the geometric confinement. This
can lead to the possibility of altering the corrosion reactions
occuring within the confinement. The goal of this research was to
investigate the role of geometric confinement on corrosion of
aluminum alloy AA5083, sensitized at 175°C for 240 hours. This
specific alloy was targeted because it has a favorable
strength-to-weight ratio, but is susceptible to pitting as well as
stress corrosion cracking. This research was pursued because a
better understanding of the role of geometric confinement should
improve upon our understanding of localized corrosion in general.
It should also improve the ability to assess practical instances of
corrosion attack where the environmental conditions are different
from that of an ideal laboratory environment. This thesis
approaches the problem statement in three main sections: First, a
comprehensive analysis of the chemical composition within the
crevice was performed using a host of tools such as electrochemical
pH probes, custom-fabricated ionic conductivity meters, optical
dissolved oxygen probes and inductively coupled plasma mass
spectroscopy (ICP-MS). Based on these tests, a detailed
understanding of the chemical make-up within the crevice was
achieved. A substantially alkaline environment (with pH exceeding
well over 9) was observed, along with depletion of dissolved
oxygen. This suggested a cathodically driven corrosion reaction
accompanied by oxygen reduction reaction within the crevice
environment. Next, the practical implications of oxygen depletion
on corrosion in geometric confinement were explored. A common
occurrence of this phenomenon would be crevice
corrosion. Here, a
deep artificial crevice was created (1cm wide, 3cm deep, 150
microns thick), and was subjected to 1 molar sodium chloride
solution for different time durations, lasting till 1 week. The
surface damage was quantitatively characterized by using optical
interferometry.
Compared to the sample exposed to the bulk
corrosion, the sample exposed to crevice
corrosion showed a
transition between the mode of corrosion attack. The bulk region
was
primarily subjected to pitting. While some intergranular
attack was seen, it was not systemically
present. In the crevice
opening region, the attack was predominantly intergranular. In
the
deep interior of the crevice, the region was almost intact, with
minimal surface damage
…
Subjects/Keywords: Corrosion; Electrochemistry; Optical interferometry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Puranik, R. (2018). Corrosion in confinement. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/34132
Chicago Manual of Style (16th Edition):
Puranik, Rohit. “Corrosion in confinement.” 2018. Doctoral Dissertation, University of Rochester. Accessed February 24, 2021.
http://hdl.handle.net/1802/34132.
MLA Handbook (7th Edition):
Puranik, Rohit. “Corrosion in confinement.” 2018. Web. 24 Feb 2021.
Vancouver:
Puranik R. Corrosion in confinement. [Internet] [Doctoral dissertation]. University of Rochester; 2018. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1802/34132.
Council of Science Editors:
Puranik R. Corrosion in confinement. [Doctoral Dissertation]. University of Rochester; 2018. Available from: http://hdl.handle.net/1802/34132

University of Utah
15.
Centauri, Laurie Ann.
Uncertainty quantification for holographic interferographic images.
Degree: MS, Chemical Engineering, 2010, University of Utah
URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/400/rec/2820
► Current comparison methods for experimental and simulated holographic interferometric images are qualitative in nature. Previous comparisons of holographic interferometric images with computational fluid dynamics (CFD)…
(more)
▼ Current comparison methods for experimental and simulated holographic interferometric images are qualitative in nature. Previous comparisons of holographic interferometric images with computational fluid dynamics (CFD) simulations for validation have been performed qualitatively through visual comparison by a data analyst. By validating the experiments and CFD simulations in a quantifiable manner using a consistency analysis, the validation becomes a repeatable process that gives a consistency measure and a range of inputs over which the experiments and CFD simulations give consistent results. The quantification of uncertainty in four holographic interferometric experiments was performed for use in a data collaboration with CFD simulations for the purpose of validation. The model uncertainty from image-rocessing, the measurement uncertainty from experimental data variation, and the scenario uncertainty from the bias and parameter uncertainty was quantified. The scenario uncertainty was determined through comparison with an analytical solution at the helium inlet (height, x = 0), including the uncertainty in the experimental parameters from historical weather data. The model uncertainty was calculated through a Box-Behnkin sensitivity analysis on three imageprocessing code parameters. Measurement uncertainty was determined through a statistical analysis to determine the time-average and standard deviation in the interference fringe positions. An experimental design matrix of CFD simulations was iv performed by Weston Eldredge using a Box-Behnkin design with helium velocity, temperature, and air co-flow velocity as parameters in conjunction to provide simulated measurements for the data collaboration Data set. Over 3,200 holographic interferometric images were processed through the course of this study. When each permutation of these images is taken into account through all the image-processing steps, the total number of images processed is over 13,000. Probability distribution functions were plotted for each interference fringe order at each measurement height, making a total of 22 PDFs. Model, scenario, and measurement uncertainty was quantified in the experiments. The CFD simulations were performed. The final uncertainty attributed to the experiments resulted in a maximum uncertainty of -7.96 fringes. The largest contributor to uncertainty was the scenario uncertainty with measurement uncertainty as the second largest. The model uncertainty was very small and as such had the smallest contribution to the overall experimental uncertainty. In the future, the results of this study will be used in conjunction with the CFD simulations discussed and their attributed error in a data collaboration to determine Data set consistency for validation.
Subjects/Keywords: Holographic interferometry; Plumes; Uncertainty quantification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Centauri, L. A. (2010). Uncertainty quantification for holographic interferographic images. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/400/rec/2820
Chicago Manual of Style (16th Edition):
Centauri, Laurie Ann. “Uncertainty quantification for holographic interferographic images.” 2010. Masters Thesis, University of Utah. Accessed February 24, 2021.
http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/400/rec/2820.
MLA Handbook (7th Edition):
Centauri, Laurie Ann. “Uncertainty quantification for holographic interferographic images.” 2010. Web. 24 Feb 2021.
Vancouver:
Centauri LA. Uncertainty quantification for holographic interferographic images. [Internet] [Masters thesis]. University of Utah; 2010. [cited 2021 Feb 24].
Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/400/rec/2820.
Council of Science Editors:
Centauri LA. Uncertainty quantification for holographic interferographic images. [Masters Thesis]. University of Utah; 2010. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/400/rec/2820

Universidade Estadual de Campinas
16.
Bins, Leonardo Sant'Anna, 1961.
Estimação de fase absoluta e de linha de base em radar interferométrico de abertura sintética com múltiplas antenas: Absolute phase and baseline estimation for interferometric synthetic aperture radar using multiple antennas.
Degree: 2014, Universidade Estadual de Campinas
URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/261023
► Abstract: Two important issues in SAR interferometry (InSAR) are absolute phase and baseline estimation. The precise knowledge of these parameters is essential for the production…
(more)
▼ Abstract: Two important issues in SAR
interferometry (InSAR) are absolute phase and baseline estimation. The precise knowledge of these parameters is essential for the production of digital elevation models with high accuracy. The absolute phase estimation can be done in two steps. The first step performs the unwrapping of the phase, which retrieves the 2? multiples of the phase. The second step estimates the phase offset caused by a combination of errors in the acquisition system and in SAR
interferometry (InSAR) processing. The baseline estimation determines the relative position of the slave antenna with respect to the master antenna (reference antenna). The contributions of this thesis consist in the design and implementation of three methods that use multiple antennas to address the above issues. The first method performs the unwrapping of the phase in a pixel based fashion, by iteratively unfolding the phase corresponding to each interferograma, followed by maximum likelihood fusion of the unwrapped phases. The second method refines the absolute phase estimation of the first step by incorporating a phase offset estimation based on multiple, noncollinear, antennas. This is achieved by minimizing the geometrical distortion (relative error) in the reconstructed digital elevation model induced by erroneous phase offsets in the interferograms. One advantage of this method is that it does not require the deployment of corner reflector in the area to be imaged. Lastly, the third method deals with baselines estimation. A baseline is determined by the relative positions of the slave and master antennas. The estimation is performed with a greedy stochastic algorithm of Monte Carlo type which uses corner reflectors with precisely known positions. A new position for the slave antenna is accepted when the mean square error of the corner reflector positions is reduced
Advisors/Committee Members: UNIVERSIDADE ESTADUAL DE CAMPINAS (CRUESP), Costa, Max Henrique Machado, 1950- (advisor), Universidade Estadual de Campinas. Faculdade de Engenharia Elétrica e de Computação (institution), Programa de Pós-Graduação em Engenharia Elétrica (nameofprogram), Neto, João Roberto Moreira (committee member), Fernandes, David (committee member), Filho, Jose Candido Silveira Santos (committee member), Ohishi, Takaaki (committee member).
Subjects/Keywords: Interferometria; Radar; Interferometry; Radar
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bins, Leonardo Sant'Anna, 1. (2014). Estimação de fase absoluta e de linha de base em radar interferométrico de abertura sintética com múltiplas antenas: Absolute phase and baseline estimation for interferometric synthetic aperture radar using multiple antennas. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/261023
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Bins, Leonardo Sant'Anna, 1961. “Estimação de fase absoluta e de linha de base em radar interferométrico de abertura sintética com múltiplas antenas: Absolute phase and baseline estimation for interferometric synthetic aperture radar using multiple antennas.” 2014. Thesis, Universidade Estadual de Campinas. Accessed February 24, 2021.
http://repositorio.unicamp.br/jspui/handle/REPOSIP/261023.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Bins, Leonardo Sant'Anna, 1961. “Estimação de fase absoluta e de linha de base em radar interferométrico de abertura sintética com múltiplas antenas: Absolute phase and baseline estimation for interferometric synthetic aperture radar using multiple antennas.” 2014. Web. 24 Feb 2021.
Vancouver:
Bins, Leonardo Sant'Anna 1. Estimação de fase absoluta e de linha de base em radar interferométrico de abertura sintética com múltiplas antenas: Absolute phase and baseline estimation for interferometric synthetic aperture radar using multiple antennas. [Internet] [Thesis]. Universidade Estadual de Campinas; 2014. [cited 2021 Feb 24].
Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/261023.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Bins, Leonardo Sant'Anna 1. Estimação de fase absoluta e de linha de base em radar interferométrico de abertura sintética com múltiplas antenas: Absolute phase and baseline estimation for interferometric synthetic aperture radar using multiple antennas. [Thesis]. Universidade Estadual de Campinas; 2014. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/261023
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Vanderbilt University
17.
Garcia, Eugenio Victor.
Astrophysical Laboratories and Advanced Imaging Techniques for Testing Stellar Models: Eclipsing Binaries, High Contrast Imaging, and Optical Interferometry.
Degree: PhD, Physics, 2016, Vanderbilt University
URL: http://hdl.handle.net/1803/12121
► In chapter 1, we determine the masses, radii and temperatures of the eclipsing binary V578 Mon, a detached system of two early B-type stars in…
(more)
▼ In chapter 1, we determine the masses, radii and temperatures of the eclipsing binary V578 Mon, a detached system of two early B-type stars in the Rosette Nebula, to better than 5% accuracy. We compare these measurements to the stellar models of the Geneva, Utrecht and Granada group. We find all three sets of models marginally reproduce the absolute dimensions of both stars. However - there are some apparent discrepancies, and the Utrecht models worked best. We also compute the combined internal structure constants for V578 Mon. We find that the predicted internal structure constants of the Granada models fully agrees with our observations.
In chapter 2, we present the results of a Hubble Space Telescope survey of the lowest mass brown dwarfs in the Pleiades. These objects represent the predecessors to T-dwarfs in the field. Using a new PSF-fitting technique, we are able to probe to 30 milliarcseconds, better than 2× the HST diffraction limit. We did not find any companions to our targets. Our survey is the first to attain the high angular resolution needed to resolve brown dwarf binaries in the Pleiades at separations that are most common in the field population. We constrain the binary frequency to be <26% at 2σ. This binary frequency is consistent with both younger and older brown dwarfs in this mass range and with brown dwarf formation models.
Visible-light long baseline
interferometry holds the promise of advancing a number of important applications in fundamental astronomy, including the direct measurement of the angular diameters and oblateness of stars, and the orbits of binary and multiple star systems. To advance, the field requires instruments capable of combining light from 6 telescopes simultaneously. In chapter 3, we present the Visible Imaging System for Interferometric Observations at NPOI (VISION) is a new visible light beam combiner for the Navy Precision Optical Interferometer (NPOI) that coherently combines light from up to six telescopes simultaneously. We detail the commissioning of VISION with laboratory and on-sky tests. We provide a new set of corrections for the power spectrum and bispectrum when using EMCCDs.
Advisors/Committee Members: Professor Keivan Stassun (committee member), Dr. Gerard van Belle (committee member), Professor Andreas Berlind (committee member), Professor Kelly Holley-Bocklemann (committee member), Professor Robert Scherrer (committee member).
Subjects/Keywords: brown dwarfs; stellar evolution; interferometry
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Garcia, E. V. (2016). Astrophysical Laboratories and Advanced Imaging Techniques for Testing Stellar Models: Eclipsing Binaries, High Contrast Imaging, and Optical Interferometry. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/12121
Chicago Manual of Style (16th Edition):
Garcia, Eugenio Victor. “Astrophysical Laboratories and Advanced Imaging Techniques for Testing Stellar Models: Eclipsing Binaries, High Contrast Imaging, and Optical Interferometry.” 2016. Doctoral Dissertation, Vanderbilt University. Accessed February 24, 2021.
http://hdl.handle.net/1803/12121.
MLA Handbook (7th Edition):
Garcia, Eugenio Victor. “Astrophysical Laboratories and Advanced Imaging Techniques for Testing Stellar Models: Eclipsing Binaries, High Contrast Imaging, and Optical Interferometry.” 2016. Web. 24 Feb 2021.
Vancouver:
Garcia EV. Astrophysical Laboratories and Advanced Imaging Techniques for Testing Stellar Models: Eclipsing Binaries, High Contrast Imaging, and Optical Interferometry. [Internet] [Doctoral dissertation]. Vanderbilt University; 2016. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1803/12121.
Council of Science Editors:
Garcia EV. Astrophysical Laboratories and Advanced Imaging Techniques for Testing Stellar Models: Eclipsing Binaries, High Contrast Imaging, and Optical Interferometry. [Doctoral Dissertation]. Vanderbilt University; 2016. Available from: http://hdl.handle.net/1803/12121

Penn State University
18.
Nagarmat, Tejas.
Interferometric techniques using Software Defined Radars.
Degree: 2012, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/13126
► The incoherent scatter technique for ionospheric research has proven its ability to measure most of the parameters of interest that define the ionosphere. Penn State…
(more)
▼ The incoherent scatter technique for ionospheric research has proven its ability to
measure most of the parameters of interest that define the ionosphere. Penn State has been
developing advanced cost effective instruments and technologies for future meteor radars to study the basic properties of the global meteor flux, such as average mass, velocity and chemical composition. Cross-correlative interferometric techniques not only allow us to accurately determine the trajectory and the speed of meteors, but also help in overcoming the geophysical clutter observed at these altitudes.
The Applied Signal Processing and Instrumentation Research Laboratory (ASPIRL) at
Penn State has developed a state-of-the art radar instrumentation, the Penn State University
Software Defined Radar (PSUSDR), by developing a generalized instrumentation core that can be
customized using specialized output stage hardware using low cost field-programmable gate
arrays (FPGAs). The use of open source software tools and a generalized object oriented software
framework make this system a promising proposition for all future radar research.
In this work, I propose the implementation of general post processing interferometric
techniques for PSUSDR and the specific modifications to suit the needs of the Poker Flat Incoherent Scatter Radar (PFISR) facility, Alaska. The instrument design concepts and some of the emerging technologies developed for this meteor radar are also discussed followed by
simulations and analysis for the same.
Advisors/Committee Members: Julio Urbina, Thesis Advisor/Co-Advisor.
Subjects/Keywords: Software Defined Radar; Interferometry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nagarmat, T. (2012). Interferometric techniques using Software Defined Radars. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/13126
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Nagarmat, Tejas. “Interferometric techniques using Software Defined Radars.” 2012. Thesis, Penn State University. Accessed February 24, 2021.
https://submit-etda.libraries.psu.edu/catalog/13126.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nagarmat, Tejas. “Interferometric techniques using Software Defined Radars.” 2012. Web. 24 Feb 2021.
Vancouver:
Nagarmat T. Interferometric techniques using Software Defined Radars. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Feb 24].
Available from: https://submit-etda.libraries.psu.edu/catalog/13126.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nagarmat T. Interferometric techniques using Software Defined Radars. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/13126
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
19.
Kitano, Cláudio [UNESP].
Métodos inéditos de interrogação óptica e suas aplicações na medição de grandezas físicas.
Degree: 2017, Universidade Estadual Paulista
URL: http://hdl.handle.net/11449/149249
► Neste Texto Sistematizado, o candidato a Livre Docente expõe os principais resultados alcançados em sua trajetória após o doutorado, em termos de atividades de ensino,…
(more)
▼ Neste Texto Sistematizado, o candidato a Livre Docente expõe os principais resultados alcançados em sua trajetória após o doutorado, em termos de atividades de ensino, extensão, administrativas e de pesquisa. Ênfase especial é destinada à análise crítica das atividades de pesquisa e orientação de dissertações e teses junto ao Programa de Pós-Graduação em Engenharia Elétrica - PPGEE, da FE-IS UNESP. O enfoque principal da pesquisa refere-se à proposição teórica e experimental de novas técnicas de detecção de fase óptica empregando-se interferometria laser, e suas aplicações na medição de deslocamentos microscópicos, na caracterização de atuadores piezoelétricos flextensionais e em medições de tensões elétricas elevadas. A motivação para a realização da pesquisa, a exposição dos desafios e as soluções propostas são discutidas. Inserções em outras áreas, que envolvam sensores e sistemas ópticos, bem como, a cooperação com grupos de pesquisas afins, internos e externos à FE-IS UNESP, são apresentadas. No final, discutem-se as pesquisas atuais e as perspectivas futuras
Advisors/Committee Members: Universidade Estadual Paulista (UNESP).
Subjects/Keywords: Detectores óticos; Interferometria; Optoeletronica; Interferometry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kitano, C. [. (2017). Métodos inéditos de interrogação óptica e suas aplicações na medição de grandezas físicas. (Thesis). Universidade Estadual Paulista. Retrieved from http://hdl.handle.net/11449/149249
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kitano, Cláudio [UNESP]. “Métodos inéditos de interrogação óptica e suas aplicações na medição de grandezas físicas.” 2017. Thesis, Universidade Estadual Paulista. Accessed February 24, 2021.
http://hdl.handle.net/11449/149249.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kitano, Cláudio [UNESP]. “Métodos inéditos de interrogação óptica e suas aplicações na medição de grandezas físicas.” 2017. Web. 24 Feb 2021.
Vancouver:
Kitano C[. Métodos inéditos de interrogação óptica e suas aplicações na medição de grandezas físicas. [Internet] [Thesis]. Universidade Estadual Paulista; 2017. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/11449/149249.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kitano C[. Métodos inéditos de interrogação óptica e suas aplicações na medição de grandezas físicas. [Thesis]. Universidade Estadual Paulista; 2017. Available from: http://hdl.handle.net/11449/149249
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
20.
Hughes, Rowland.
A laser plantar pressure sensor for the diabetic foot.
Degree: PhD, 2000, University of South Wales
URL: https://pure.southwales.ac.uk/en/studentthesis/a-laser-plantar-pressure-sensor-for-the-diabetic-foot(521b1dfa-d201-4356-b1d9-74d314b1c360).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.749639
► This thesis is concerned with the design and building of a foot pressure system capable of measuring the pressure distribution underneath the diabetic foot. The…
(more)
▼ This thesis is concerned with the design and building of a foot pressure system capable of measuring the pressure distribution underneath the diabetic foot. The system is developed to have a higher resolution and be more cost-effective than existing commercial systems. The biomechanics of the foot and ankle is explained in detail, providing an explanation for the relationship between high pressures and ulcerations. Various techniques of measuring foot pressure are reviewed, providing a thorough understanding of the advantages and disadvantages of each technique. The system developed uses the technique of interferometry, which is discussed in detail, explaining why the Fizeau Interferometer technique was chosen over other interferometer techniques. A number of materials were tested as to their suitability to be used as the pressure plate in the system i.e. compression/force relationship. From the results 'Perspex' was found to be the most suitable material. Two fringe-processing software packages were tested i.e. Fringe Processor 2 and Fringe Pattern Analysis (FRAN), with Fringe Processor 2 being chosen for this research. A graphical user interface for image display was created in order to display and analyse the various pressure images. Three prototypes were implemented. The first used a variation on the Fizeau interferometer, the second used a variation on the Twyman Green interferometer, whilst the third improved on the use of the variation of the Fizeau interferometer. By analysing the advantages and disadvantages of each prototype, the 3 rd prototype was chosen as the most suitable for achieving the aims and objectives of this research. This prototype was subjected to various tests i.e. resolution, measurable area, repeatability, calibration, short term reliability and sensitivity to heat. Various normal and pathological foot measurements were taken and analysed, and the effectiveness of the image display graphical user interface tested. The main contribution of this thesis is the use of interferometry to measure pressure. This in turn provides a foot pressure system, which has extremely high resolution and accuracy. The simple nature of the new pressure system also means that the entire system is very cost effective.
Subjects/Keywords: 616.4; Interferometry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hughes, R. (2000). A laser plantar pressure sensor for the diabetic foot. (Doctoral Dissertation). University of South Wales. Retrieved from https://pure.southwales.ac.uk/en/studentthesis/a-laser-plantar-pressure-sensor-for-the-diabetic-foot(521b1dfa-d201-4356-b1d9-74d314b1c360).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.749639
Chicago Manual of Style (16th Edition):
Hughes, Rowland. “A laser plantar pressure sensor for the diabetic foot.” 2000. Doctoral Dissertation, University of South Wales. Accessed February 24, 2021.
https://pure.southwales.ac.uk/en/studentthesis/a-laser-plantar-pressure-sensor-for-the-diabetic-foot(521b1dfa-d201-4356-b1d9-74d314b1c360).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.749639.
MLA Handbook (7th Edition):
Hughes, Rowland. “A laser plantar pressure sensor for the diabetic foot.” 2000. Web. 24 Feb 2021.
Vancouver:
Hughes R. A laser plantar pressure sensor for the diabetic foot. [Internet] [Doctoral dissertation]. University of South Wales; 2000. [cited 2021 Feb 24].
Available from: https://pure.southwales.ac.uk/en/studentthesis/a-laser-plantar-pressure-sensor-for-the-diabetic-foot(521b1dfa-d201-4356-b1d9-74d314b1c360).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.749639.
Council of Science Editors:
Hughes R. A laser plantar pressure sensor for the diabetic foot. [Doctoral Dissertation]. University of South Wales; 2000. Available from: https://pure.southwales.ac.uk/en/studentthesis/a-laser-plantar-pressure-sensor-for-the-diabetic-foot(521b1dfa-d201-4356-b1d9-74d314b1c360).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.749639

University of Manchester
21.
Gürkan, Gülay.
A method for efficient measurement of gravitational
lensing time delays.
Degree: 2011, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:122980
► This thesis presents an efficient technique for measuring lensing time delays which does not require regular monitoring with a high-resolution interferometer array. This method uses…
(more)
▼ This thesis presents an efficient technique for
measuring lensing time delays which does not require regular
monitoring with a high-resolution interferometer array. This method
uses asymmetric double image and long-axis quadruple radio lens
systems in which the brighter component(s) varies first and
dominates the total flux density. Monitoring the total flux density
with low-resolution but high sensitivity radio telescopes provides
the variation of the brighter image and is used to trigger
high-resolution observations which can then be used to see the
variation in the fainter image.The efficiency of this technique was
assessed by performing simulations using the Pelt dispersion
statistic and artificial light curves. The results of the
cross-correlation simulations demonstrated that time delays can be
determined to <10% accuracy. Secondly, a pilot project was
implemented using Westerbork Radio Synthesis Telescope (WSRT) to
trigger Very Large Array (VLA) observations. Total flux monitoring
of 8 radio lens systems was conducted using WSRT observations with
enough sensitivity to see the variation in the total flux. Among
the 8 systems only B1030+074 showed a variability during the total
flux monitoring. Then, VLA observations were triggered for
B1030+074. We could not catch the variation of the fainter image
during the VLA monitoring. However, further cross-correlation
simulations were performed to obtain limits for the time delay
between the images.
Advisors/Committee Members: Jackson, Neal.
Subjects/Keywords: Gravitational Lensing; Radio Interferometry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gürkan, G. (2011). A method for efficient measurement of gravitational
lensing time delays. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:122980
Chicago Manual of Style (16th Edition):
Gürkan, Gülay. “A method for efficient measurement of gravitational
lensing time delays.” 2011. Doctoral Dissertation, University of Manchester. Accessed February 24, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:122980.
MLA Handbook (7th Edition):
Gürkan, Gülay. “A method for efficient measurement of gravitational
lensing time delays.” 2011. Web. 24 Feb 2021.
Vancouver:
Gürkan G. A method for efficient measurement of gravitational
lensing time delays. [Internet] [Doctoral dissertation]. University of Manchester; 2011. [cited 2021 Feb 24].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:122980.
Council of Science Editors:
Gürkan G. A method for efficient measurement of gravitational
lensing time delays. [Doctoral Dissertation]. University of Manchester; 2011. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:122980

Australian National University
22.
Cumpston, Jeff.
Coating-Free Mirrors
for Ultra-Sensitive Interferometry
.
Degree: 2006, Australian National University
URL: http://hdl.handle.net/1885/44514
► Thermodynamical fluctuations impose random noise on the position of optical components. It is predicted that this thermal noise will limit the sensitivity of interferometric gravitational-wave…
(more)
▼ Thermodynamical fluctuations impose random noise on the position of optical components.
It is predicted that this thermal noise will limit the sensitivity of interferometric
gravitational-wave detectors in their most sensitive frequency band. Thermal noise originating
from optical coatings was first considered in the context of interferometric gravitational
wave detectors. Its true significance was, however, only revealed after Y. Levin
introduced a new method in 1998 to calculate the resulting phase noise of a laser beam
reading out the position of a coated mirror. A result of this analysis is that the reflective
optical coatings introduce a particularly large portion of thermal noise.
¶
As a consequence, coating thermal noise is expected to prevent the detection of the
standard quantum limit; a limitation to the sensitivity of an interferometric measurement
caused by quantum fluctuations in the optical field. Elimination of the coating thermal
noise will increase the likelihood of the successful observation of the standard quantum
limit, thus enabling the investigation of quantum noise in the regime of optical squeezing.
This project investigated a means to eliminate the effects of coating thermal noise, with
the design and characterisation of a highly reflective coating-free mirror. This mirror
utilised the phenomenon of total internal reflection and the Brewster angle to reflect light
without the use of coatings. The dimensions of the mirror were governed by its expected
implementation in an experiment to measure the standard quantum limit.
¶
The design of the coating-free mirror undertaken as the initial part of this project is
presented in detail. Once a CFM had been created according to this design, its spatial
dimensions were measured. The weight of the mirror is 0.43 ± 0.01 g, well within the
design goal of 0.5 g.
¶
In order to analyse the reflectivity of the coating-free mirror it was incorporated, together
with a high quality conventional mirror, into a triangular ring cavity. This cavity was
stabilised to the laser frequency by the Pound-Drever-Hall technique. This enabled the
interrogation of the stable cavity properties by an AM-sideband transfer scheme. The
reflectivity of the mirror was analysed for optimum rotational alignment and as a function
of its rotational alignment angle. The maximum reflectivity deviated from the expected
value calculated from the mirror design. Most of the excess loss was attributed to scattering
due to surface roughness at the points of total internal reflection and a necessary
deviation from the Brewster angle due to the geometry of the cavity combined with the
flat front face of the coating free mirror.
¶
For optimum alignment a cavity finesse of about 4000 was measured, corresponding to a
reflectivity of the coating free mirror of 99.89%. Thus, the objective of creating a highly
reflective lightweight coating-free optic was achieved. The obtained reflectivity can be
further increased by using a substrate that is super polished at…
Subjects/Keywords: Physics;
Interferometry
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cumpston, J. (2006). Coating-Free Mirrors
for Ultra-Sensitive Interferometry
. (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/44514
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cumpston, Jeff. “Coating-Free Mirrors
for Ultra-Sensitive Interferometry
.” 2006. Thesis, Australian National University. Accessed February 24, 2021.
http://hdl.handle.net/1885/44514.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cumpston, Jeff. “Coating-Free Mirrors
for Ultra-Sensitive Interferometry
.” 2006. Web. 24 Feb 2021.
Vancouver:
Cumpston J. Coating-Free Mirrors
for Ultra-Sensitive Interferometry
. [Internet] [Thesis]. Australian National University; 2006. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1885/44514.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cumpston J. Coating-Free Mirrors
for Ultra-Sensitive Interferometry
. [Thesis]. Australian National University; 2006. Available from: http://hdl.handle.net/1885/44514
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria
23.
Herchak, Steven.
Reference interferometry techniques for nanodetection and biosensing.
Degree: Dept. of Electrical and Computer Engineering, 2012, University of Victoria
URL: http://hdl.handle.net/1828/4151
► Three reference interferometry techniques which overcome the effects of laser jitter noise in sensitive nanodetection experiments are presented. Experiments performed with a Mach-Zehnder interferometer in…
(more)
▼ Three reference
interferometry techniques which overcome the effects of laser jitter noise in sensitive nanodetection experiments are presented. Experiments performed with a Mach-Zehnder interferometer in parallel with an ultrahigh-Q microresonator for nanodetection of a record polystyrene particle size down to 12.5 nm radius are described. The first
interferometry technique employed in this work sees the implementation of a Mach-Zehnder interferometer in parallel with a microsphere to show the versatility of these devices across detection systems. Using a least squares fitting method on simulated results, it is shown that the parallel Mach-Zehnder can detect resonant wavelength shifts of the microcavity down to hundreds of attometers, provided sufficient system stability. Furthermore, a cavity resonant wavelength shift detection sensitivity of 0.14 femtometers is observed experimentally with a loaded microsphere Q of 2.0x10
8 in a buffer solution.
For experiments which require high optical intensities, splitting off part of the optical power for use in an interferometer may reduce the dynamic range of power sensitive measurements. To rectify this problem, two in-line systems are investigated: the serial connected Mach-Zehnder and Fabry-Perot interferometers. According to simulation, the use of a Mach-Zehnder interferometer is not suitable for serial
interferometry. In light of this problem, a serial Fabry-Perot interferometer is proposed. It is shown that with a least squares fitting method to fit experimental data the inline Fabry-Perot interferometer can measure resonant wavelength shifts down to a few femtometers, again provided sufficient system stability. Experimental results show a cavity resonant wavelength shift detection sensitivity of 0.5 femtometers observed with a microsphere Q of 2.1x10
7 in a buffer solution.
Advisors/Committee Members: Lu, Tao (supervisor).
Subjects/Keywords: Nanodetection; Nanophotonics; Optics; Interferometry; Biosensing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Herchak, S. (2012). Reference interferometry techniques for nanodetection and biosensing. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/4151
Chicago Manual of Style (16th Edition):
Herchak, Steven. “Reference interferometry techniques for nanodetection and biosensing.” 2012. Masters Thesis, University of Victoria. Accessed February 24, 2021.
http://hdl.handle.net/1828/4151.
MLA Handbook (7th Edition):
Herchak, Steven. “Reference interferometry techniques for nanodetection and biosensing.” 2012. Web. 24 Feb 2021.
Vancouver:
Herchak S. Reference interferometry techniques for nanodetection and biosensing. [Internet] [Masters thesis]. University of Victoria; 2012. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1828/4151.
Council of Science Editors:
Herchak S. Reference interferometry techniques for nanodetection and biosensing. [Masters Thesis]. University of Victoria; 2012. Available from: http://hdl.handle.net/1828/4151

Montana State University
24.
Baselga Mateo, Ana.
Applications of high resolution and accuracy frequency modulated continuous wave LADAR.
Degree: MS, College of Letters & Science, 2014, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/8771
► The high resolution frequency modulated continuous wave (FMCW) laser and detection ranging (LADAR) system developed by Spectrum Lab and Bridger Photonics Inc. could be potentially…
(more)
▼ The high resolution frequency modulated continuous wave (FMCW) laser and detection ranging (LADAR) system developed by Spectrum Lab and Bridger Photonics Inc. could be potentially used for volume metrology purposes. However, comparisons with other length metrology methods would help to determine its actual precision and accuracy. An ultra-low phase noise and narrow bandwidth laser centered at 1536nm is used to build a displacement tracking interferometer for comparisons. Lock-in detection based on phase modulation is used to reduce sensitivity to amplitude noise. The data is processed to obtain an accurate displacement measurement with a novel fringe counting technique that provides resolution higher than lambda/4. After calibrating and figuring out the stability of the FMCW LADAR, its ranging capability is determined by comparison with these results along different wavelength regions. Furthermore, we propose a combination of the trilateration techniques with the FMCW LADAR system for accurate 2D metrology. This idea is developed from design to implementation stages. Surface profiles of non-cooperative diffuse targets using lasers sources with different optical bandwidths are presented. A photon budget and an error analysis of the experimental results are also included.
Advisors/Committee Members: Chairperson, Graduate Committee: Wm. Randall Babbitt (advisor).
Subjects/Keywords: Continuous wave radar.; Metrology.; Interferometry.
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APA (6th Edition):
Baselga Mateo, A. (2014). Applications of high resolution and accuracy frequency modulated continuous wave LADAR. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/8771
Chicago Manual of Style (16th Edition):
Baselga Mateo, Ana. “Applications of high resolution and accuracy frequency modulated continuous wave LADAR.” 2014. Masters Thesis, Montana State University. Accessed February 24, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/8771.
MLA Handbook (7th Edition):
Baselga Mateo, Ana. “Applications of high resolution and accuracy frequency modulated continuous wave LADAR.” 2014. Web. 24 Feb 2021.
Vancouver:
Baselga Mateo A. Applications of high resolution and accuracy frequency modulated continuous wave LADAR. [Internet] [Masters thesis]. Montana State University; 2014. [cited 2021 Feb 24].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/8771.
Council of Science Editors:
Baselga Mateo A. Applications of high resolution and accuracy frequency modulated continuous wave LADAR. [Masters Thesis]. Montana State University; 2014. Available from: https://scholarworks.montana.edu/xmlui/handle/1/8771

University of Toronto
25.
Sahota, Jaspreet.
Quantum-enhanced Phase Estimation in Optical Interferometry.
Degree: PhD, 2017, University of Toronto
URL: http://hdl.handle.net/1807/80851
► Quantum-enhanced interferometers utilize non-classical states of light in order to surpass the limitations imposed by classical physics on phase measurement sensitivity and resolution. We review…
(more)
▼ Quantum-enhanced interferometers utilize non-classical states of light in order to surpass the limitations imposed by classical physics on phase measurement sensitivity and resolution. We review key scientific developments in this growing field of research and derive fundamental metrology concepts, namely the Cramér-Rao bound and the Fisher information, which are used to analyze the metrological performance of quantum states of light.
We propose a supersensitive quantum
interferometry protocol that can be amplified to the macroscopic realm (i.e. the mean number of photons of the probe state can reach approximately 100,000 photons) using contemporary techniques of spontaneous parametric down conversion. The parity measurement on the output field asymptotically saturates the quantum Cramér-Rao bound, which scales like the Heisenberg limit.
We uncover the role of photon statistics on phase sensitivity and rule out the necessity of mode entanglement for quantum-enhanced
interferometry. Based on these insights we outline a practical metrology technique (independent of mode entanglement) that measures a phase delay of a single-mode anti-squeezing operation. This scheme can also be scaled macroscopically using contemporary techniques and is shown to significantly surpass the shot-noise limit (SNL) in the presence of realistic losses.
Finally, the physical resources that enable quantum-enhanced
interferometry is studied by analyzing the quantum Fisher information (QFI) using the first quantization and the second quantization formalisms of quantum mechanics. It is shown that increasing the intra-mode correlations of an interferometer (as quantified by the second order Glauber coherence function) can be conducive to attaining a quantum advantage in phase estimation; whereas, introducing mode entanglement can reduce phase sensitivity. Using the first quantization description, we derive a formula for the QFI that shows explicitly how the Heisenberg scaling term depends on particle entanglement.
Advisors/Committee Members: James, Daniel F. V., Physics.
Subjects/Keywords: Interferometry; Metrology; Quantum Optics; 0599
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Sahota, J. (2017). Quantum-enhanced Phase Estimation in Optical Interferometry. (Doctoral Dissertation). University of Toronto. Retrieved from http://hdl.handle.net/1807/80851
Chicago Manual of Style (16th Edition):
Sahota, Jaspreet. “Quantum-enhanced Phase Estimation in Optical Interferometry.” 2017. Doctoral Dissertation, University of Toronto. Accessed February 24, 2021.
http://hdl.handle.net/1807/80851.
MLA Handbook (7th Edition):
Sahota, Jaspreet. “Quantum-enhanced Phase Estimation in Optical Interferometry.” 2017. Web. 24 Feb 2021.
Vancouver:
Sahota J. Quantum-enhanced Phase Estimation in Optical Interferometry. [Internet] [Doctoral dissertation]. University of Toronto; 2017. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1807/80851.
Council of Science Editors:
Sahota J. Quantum-enhanced Phase Estimation in Optical Interferometry. [Doctoral Dissertation]. University of Toronto; 2017. Available from: http://hdl.handle.net/1807/80851

University of New Mexico
26.
Harris, Mark.
STRUCTURAL INFLUENCES ON INTENSITY INTERFEROMETRY CORRELATION.
Degree: Civil Engineering, 2015, University of New Mexico
URL: http://hdl.handle.net/1928/30388
► Pairing the information received from multiple telescopes to explore the universe is typically based on the interference phenomenon between amplitudes of light, rather their intensities.…
(more)
▼ Pairing the information received from multiple telescopes to explore the universe is typically based on the interference phenomenon between amplitudes of light, rather their intensities. Brighter sources and larger telescopes allow for greater amounts of light to be collected, but do not specifically involve the intensity interference of electromagnetic fields. There is an alternate form of creating images of distant objects called Intensity
Interferometry (II), which is less sensitive to atmospheric distortions and aberrations of telescope surfaces. The deficiencies of II are overcome as photo detectors become more sensitive and computers more powerful. In recognition of this possibility this dissertation investigates how the deformation of a large optical surface would influence the accuracy of II. This research first involved obtaining an understanding of the theoretical foundation of II and statistics (based on quantum mechanics) of photon correlations. Optical Ray-tracing and Finite Element Analyses were thereafter integrated to answer this question: how would the correlation of the intensity field change as a large light weight reflective structure deforms? Analytical models based on the theory of the deformation of shells were developed to validate the Finite Element Analyses. In this study a single focal parabolic reflector of an Intensity Interferometer (II) system is simulated. The extent that dynamic focal properties amongst a parabolic reflector change the statistics of the light at a detector is analyzed. A ray tracing algorithm is used to examine how the statistical variations of simulated monochromatic stellar light changes from the source to the detector. Varying the positions of the detector from the focal plane and the surface profile of the mirror develops a metric to understand how the various scenarios affect the statistics of the detected light and the correlation measurement between the source and detector. Photon streams are evaluated for light distribution, time of flight, and statistical changes at a detector. This research and analysis are used as a means to develop a tool to quantify how structural perturbations of focal mirrors affect the statistics of photon stream detections inherent in II instrumentation and science.'
Advisors/Committee Members: Maji, Arup, Maji, Arup, Ross, Timothy, Tarefder, Rafiqul.
Subjects/Keywords: Optics; Ray Tracing; Intensity Interferometry
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Harris, M. (2015). STRUCTURAL INFLUENCES ON INTENSITY INTERFEROMETRY CORRELATION. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/30388
Chicago Manual of Style (16th Edition):
Harris, Mark. “STRUCTURAL INFLUENCES ON INTENSITY INTERFEROMETRY CORRELATION.” 2015. Doctoral Dissertation, University of New Mexico. Accessed February 24, 2021.
http://hdl.handle.net/1928/30388.
MLA Handbook (7th Edition):
Harris, Mark. “STRUCTURAL INFLUENCES ON INTENSITY INTERFEROMETRY CORRELATION.” 2015. Web. 24 Feb 2021.
Vancouver:
Harris M. STRUCTURAL INFLUENCES ON INTENSITY INTERFEROMETRY CORRELATION. [Internet] [Doctoral dissertation]. University of New Mexico; 2015. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1928/30388.
Council of Science Editors:
Harris M. STRUCTURAL INFLUENCES ON INTENSITY INTERFEROMETRY CORRELATION. [Doctoral Dissertation]. University of New Mexico; 2015. Available from: http://hdl.handle.net/1928/30388

University of New Mexico
27.
Rakholia, Akash.
High Data-Rate Atom Interferometry for Measuring Dynamic Inertial Conditions.
Degree: Physics & Astronomy, 2015, University of New Mexico
URL: http://hdl.handle.net/1928/30412
► Light pulse atom interferometers have demonstrated remarkable sensitivity and stability for acceleration and rotation rate measurement. However, typical manifestations are designed for laboratory environments and…
(more)
▼ Light pulse atom interferometers have demonstrated remarkable sensitivity and stability for acceleration and rotation rate measurement. However, typical manifestations are designed for laboratory environments and thus rely on a fixed magnitude and direction of gravity, and limited ambient rotation rate. We have enhanced the application space of atom interferometers towards more dynamic environments, with special attention for inertial navigation. I present our work in the domain of short time-of-flight atom
interferometry, whereby the magnitude of ensemble excursion is constrained. The limited interrogation time results in a significant loss of sensitivity. We recover a fraction of the lost sensitivity by operating with an enhanced duty-cycle and data-rate. To demonstrate this concept, we construct an atom interferometer accelerometer capable of operating at data-rates as high as 300 Hz with sensitivities at μg/rtHz levels, which represents a competitive figure for inertial navigation application. For the bulk of this work, we demonstrate a dual-axis sensor capable of simultaneous acceleration and rotation-rate measurements. The sensor relies on a technique we refer to as "ensemble exchange" which provides a high flux source of ultracold atoms by swapping atomic ensembles between two MOTs. We achieve a steady-state atom number of 7e6 atoms/shot using a minimal loading time of a few milliseconds each shot. Furthermore, we find this technique to be robust under dynamic conditions as large as 10 g of acceleration and 20 rad/s of rotation rate, representing a significant enhancement in ultra-cold atom sample preparation. The sensor achieves μg/rtHz and μrad/s/rtHz sensitivities, making this technique a compelling prospect for inertial navigation applications. Through the use of auxiliary cosensors and a real-time combinatorial loop with feedforward and feedback mechanisms, we demonstrate an unprecedented enhancement of the sensor dynamic range up to 20 mg. Finally, I will discuss a novel manifestation of short time-of-flight atom
interferometry in a warm atomic vapor, which avoids the complication of cold sample preparation and has the potential for significantly simplified laser systems.
Advisors/Committee Members: Biedermann, Grant, Caves, Carlton, Deutsch, Ivan, Schwindt, Peter.
Subjects/Keywords: Atom Interferometry; Ultracold Atoms
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Rakholia, A. (2015). High Data-Rate Atom Interferometry for Measuring Dynamic Inertial Conditions. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/30412
Chicago Manual of Style (16th Edition):
Rakholia, Akash. “High Data-Rate Atom Interferometry for Measuring Dynamic Inertial Conditions.” 2015. Doctoral Dissertation, University of New Mexico. Accessed February 24, 2021.
http://hdl.handle.net/1928/30412.
MLA Handbook (7th Edition):
Rakholia, Akash. “High Data-Rate Atom Interferometry for Measuring Dynamic Inertial Conditions.” 2015. Web. 24 Feb 2021.
Vancouver:
Rakholia A. High Data-Rate Atom Interferometry for Measuring Dynamic Inertial Conditions. [Internet] [Doctoral dissertation]. University of New Mexico; 2015. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/1928/30412.
Council of Science Editors:
Rakholia A. High Data-Rate Atom Interferometry for Measuring Dynamic Inertial Conditions. [Doctoral Dissertation]. University of New Mexico; 2015. Available from: http://hdl.handle.net/1928/30412

University of Arizona
28.
LAM, SIN-SANG.
REAL-TIME TWO-WAVELENGTH HOLOGRAPHIC INTERFEROMETRY WITH A BISMUTH-SILICON OXIDE CRYSTAL.
Degree: 1984, University of Arizona
URL: http://hdl.handle.net/10150/187654
► The Bismuth Silicon Oxide (BSO) single crystal can be obtained both in a large size and with good optical quality. It has been demonstrated that…
(more)
▼ The Bismuth Silicon Oxide (BSO) single crystal can be obtained both in a large size and with good optical quality. It has been demonstrated that the BSO (Bi₁₂SiO₂₀) crystal is a practical holographic recording medium. BSO is a semiconductor and has a large electro-optic coefficient. These two properties of the BSO crystal are responsible for its capability to record. In this study, the linear and circular birefringence of the BSO crystal under an electric field were investigated. The measurement method is by passing a linearly polarized wavefield through the crystal. The transmitted wavefield is written in parametric expressions using Jones calculus, and the wavefield is probed by a simple ellipsometer. The two parameters in the Jones matrix, the linear and circular birefringence, are solved from the experimental data. The electro-optic coefficient is determined from the resulting linear birefringence to be 3.57 x 10⁻¹⁰ cm/V at λ = 632.8 nm. The diffraction efficiency and temporal response of the BSO crystal in the transverse electro-optic configuration were studied. The crystal was then coated with a single layer antireflection coating to investigate the effect of a multi-reflections inside the crystal. The result showed that although the visibility improved only about 20%, the diffraction efficiency and temporal response improved two times. The BSO crystal is used as the recording medium in a two-wavelength holographic interferometer. An optical edge filter is used in the interferometer to adjust the beam ratio, and a prism is used to incorporate tilt in the interferometer and to deviate the two wavelengths to satisfy the Bragg's condition for the volume hologram. The 488 and 514.5 nm lines of an argon-ion laser are used to give an equivalent wavelength of 9.45 μm. The interferograms obtained are of high contrast.
Advisors/Committee Members: Wyant, James C (advisor).
Subjects/Keywords: Holographic interferometry.
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APA ·
Chicago ·
MLA ·
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Export
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APA (6th Edition):
LAM, S. (1984). REAL-TIME TWO-WAVELENGTH HOLOGRAPHIC INTERFEROMETRY WITH A BISMUTH-SILICON OXIDE CRYSTAL.
(Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/187654
Chicago Manual of Style (16th Edition):
LAM, SIN-SANG. “REAL-TIME TWO-WAVELENGTH HOLOGRAPHIC INTERFEROMETRY WITH A BISMUTH-SILICON OXIDE CRYSTAL.
” 1984. Doctoral Dissertation, University of Arizona. Accessed February 24, 2021.
http://hdl.handle.net/10150/187654.
MLA Handbook (7th Edition):
LAM, SIN-SANG. “REAL-TIME TWO-WAVELENGTH HOLOGRAPHIC INTERFEROMETRY WITH A BISMUTH-SILICON OXIDE CRYSTAL.
” 1984. Web. 24 Feb 2021.
Vancouver:
LAM S. REAL-TIME TWO-WAVELENGTH HOLOGRAPHIC INTERFEROMETRY WITH A BISMUTH-SILICON OXIDE CRYSTAL.
[Internet] [Doctoral dissertation]. University of Arizona; 1984. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/10150/187654.
Council of Science Editors:
LAM S. REAL-TIME TWO-WAVELENGTH HOLOGRAPHIC INTERFEROMETRY WITH A BISMUTH-SILICON OXIDE CRYSTAL.
[Doctoral Dissertation]. University of Arizona; 1984. Available from: http://hdl.handle.net/10150/187654

University of Arizona
29.
CREATH, KATHERINE.
DIGITAL SPECKLE-PATTERN INTERFEROMETRY (OPTICAL TESTING).
Degree: 1985, University of Arizona
URL: http://hdl.handle.net/10150/188115
► A digital speckle-pattern interferometer was built utilizing a 100 x 100 element Reticon diode array interfaced to an HP-9836C desk-top computer. A single-mode optical fiber…
(more)
▼ A digital speckle-pattern interferometer was built utilizing a 100 x 100 element Reticon diode array interfaced to an HP-9836C desk-top computer. A single-mode optical fiber mounted in the center of the system's aperture stop creates a spherical-wave reference beam. Secondary interference fringes are calculated inside the computer by subtracting speckle patterns before and after a deformation, and squaring this difference. This technique has been shown superior to that of taking the absolute value of the difference. The traditional vibrational observation technique of low-pass filtering a single speckle pattern and squaring the result is emulated in software. It is compared to four other vibration observation techniques. A new technique records the self-interference terms in a reference frame, and subtracts these from the time-averaged vibration data. It provides very good fringe contrast for moderately unstable objects, as well as interferometers which have not been optimized to minimize self-interference terms. The best vibration fringe contrast is obtained by subtracting two time-averaged speckle patterns of a single object resonance. One exposure has a relative π phase-shift between object and reference beams to cancel self-interference terms. This last technique is not real-time; whereas, the new technique is. Double-exposure speckle interferograms are averaged using a technique which utilizes a stepping motor to change the object illumination angle. Results of averaging deformation measurements and double-exposure vibration techniques show a large increase in fringe contrast with an accompanying reduction in speckle noise. Quantitative measurements of object deformations is demonstrated by applying phase-shifting
interferometry techniques. A deformation's phase is found by subtracting modulo 2π phases measured for each object state. Phase discontinuities are removed with the aid of noise reduction algorithms. Limitations are low intensity modulation as the phase is shifted, and speckle decorrelation during object deformation. It is shown that 10 waves of object deformation are measurable to λ/10 across the detector array. The double-exposure phase-measurement technique works well and is applicable to many different metrological measurements. To show the versatility of this technique, an optically smooth surface is contoured using two illumination wavelengths.
Advisors/Committee Members: Wyant, Jim (advisor), Barrett, Harry (committeemember), Shannon, Bob (committeemember).
Subjects/Keywords: Interferometry.;
Speckle.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
CREATH, K. (1985). DIGITAL SPECKLE-PATTERN INTERFEROMETRY (OPTICAL TESTING).
(Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/188115
Chicago Manual of Style (16th Edition):
CREATH, KATHERINE. “DIGITAL SPECKLE-PATTERN INTERFEROMETRY (OPTICAL TESTING).
” 1985. Doctoral Dissertation, University of Arizona. Accessed February 24, 2021.
http://hdl.handle.net/10150/188115.
MLA Handbook (7th Edition):
CREATH, KATHERINE. “DIGITAL SPECKLE-PATTERN INTERFEROMETRY (OPTICAL TESTING).
” 1985. Web. 24 Feb 2021.
Vancouver:
CREATH K. DIGITAL SPECKLE-PATTERN INTERFEROMETRY (OPTICAL TESTING).
[Internet] [Doctoral dissertation]. University of Arizona; 1985. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/10150/188115.
Council of Science Editors:
CREATH K. DIGITAL SPECKLE-PATTERN INTERFEROMETRY (OPTICAL TESTING).
[Doctoral Dissertation]. University of Arizona; 1985. Available from: http://hdl.handle.net/10150/188115

Loughborough University
30.
Kerr, David.
Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques.
Degree: PhD, 1992, Loughborough University
URL: http://hdl.handle.net/2134/28205
The commercial exploitation of Electronic Speckle Pattern Interferometry (ESPI) is now gathering pace with manufacturers marketing products in Europe and the USA. The power of the technique both in a research and an industrial inspection role has brought pressure from the engineering community for an automated fringe analysis system.
Subjects/Keywords: 621.3994; Interferometry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kerr, D. (1992). Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/28205
Chicago Manual of Style (16th Edition):
Kerr, David. “Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques.” 1992. Doctoral Dissertation, Loughborough University. Accessed February 24, 2021.
http://hdl.handle.net/2134/28205.
MLA Handbook (7th Edition):
Kerr, David. “Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques.” 1992. Web. 24 Feb 2021.
Vancouver:
Kerr D. Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques. [Internet] [Doctoral dissertation]. Loughborough University; 1992. [cited 2021 Feb 24].
Available from: http://hdl.handle.net/2134/28205.
Council of Science Editors:
Kerr D. Extraction of displacement data from Electronic Speckle Pattern Interferometric fringe patterns using digital image processing techniques. [Doctoral Dissertation]. Loughborough University; 1992. Available from: http://hdl.handle.net/2134/28205
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