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Dissertations / Theses on the topic 'Stokes polarimetry'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Kudenov, Michael W. "Infrared Stokes Polarimetry and Spectropolarimetry." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/193729.

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In this work, three methods of measuring the polarization state of light in the thermal infrared (3-12 microns) are modeled, simulated, calibrated and experimentally verified in the laboratory. The first utilizes the method of channeled spectropolarimetry (CP) to encode the Stokes polarization parameters onto the optical power spectrum. This channeled spectral technique is implemented with the use of two Yttrium Vanadate (YVO4) crystal retarders. A basic mathematical model for the system is presented, showing that all the Stokes parameters are directly present in the interferogram. Theoretical

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2

Yong, Siow Yin. "Radar polarimetry." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FYong.pdf.

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3

Bernasconi, Pietro Nicola. "Stokes vector-polarimetry : observation and analysis of solar magnetic fields /." [S.l.] : [s.n.], 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12227.

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4

Narayan, Chaya. "Study of Optically Active Biological Fluids Using Polarimetric Data Analysis." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1314038487.

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5

Adams, Ian. "SIMULATION AND STUDY OF THE STOKES VECTOR IN A PRECIPITATING ATMOSPHERE." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3479.

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Precipitation is a dominating quantity in microwave radiometry. The large emission and scattering signals of rain and ice, respectively, introduce large contributions to the measured brightness temperature. While this allows for accurate sensing of precipitation, it also results in degraded performance when retrieving other geophysical parameters, such as near-surface ocean winds. In particular, the retrieval of wind direction requires precise knowledge of polarization, and nonspherical particles can result in a change in the polarization of incident radiation. The aim of this dissertation is

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6

Mu, Tingkui, Shaun Pacheco, Zeyu Chen, Chunmin Zhang, and Rongguang Liang. "Snapshot linear-Stokes imaging spectropolarimeter using division-of-focal-plane polarimetry and integral field spectroscopy." NATURE PUBLISHING GROUP, 2017. http://hdl.handle.net/10150/622866.

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In this paper, the design and experimental demonstration of a snapshot linear-Stokes imaging spectropolarimeter (SLSIS) is presented. The SLSIS, which is based on division-of-focal-plane polarimetry with four parallel linear polarization channels and integral field spectroscopy with numerous slit dispersive paths, has no moving parts and provides video-rate Stokes-vector hyperspectral datacubes. It does not need any scanning in the spectral, spatial or polarization dimension and offers significant advantages of rapid reconstruction without heavy computation during post-processing. The principl

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7

Narayan, Chaya. "Polarimetric Stokes Imaging for the Detection of Tumor Margins and Segmentation." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1386785379.

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8

Bradley, Christine Lavella, and Christine Lavella Bradley. "SpectroPolarimetric Imaging Observations." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/624499.

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The capability to map anthropogenic aerosol quantities and properties over land can provide significant insights for climate and environmental studies on global and regional scales. One of the primary challenges in aerosol information monitoring is separating two signals measured by downward-viewing airborne or spaceborne instruments: the light scattered from the aerosols and light reflected from the Earth's surface. In order to study the aerosols independently, the surface signal needs to be subtracted out from the measurements. Some observational modalities, such as multispectral and multian

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9

Petermann, Jeff C. "Design of a Fully Automated Polarimetric Imaging System for Remote Characterization of Space Materials." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1329101390.

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10

Gendre, Luc. "Conception et réalisation d'un polarimètre de Stokes haute cadence à division temporelle utilisant un unique modulateur à cristaux liquides ferroélectriques pour moduler la polarisation." Phd thesis, Université de Haute Alsace - Mulhouse, 2011. http://tel.archives-ouvertes.fr/tel-00713656.

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L'imagerie de polarisation apporte des informations complémentaires à l'imagerie conventionnelle. L'oeil humain n'étant cependant pas sensible à la polarisation de la lumière, l'utilisation d'équipements spécifiques est indispensable. Depuis le XIXème siècle, des scientifiques étudient la polarisation de la lumière: d'abord avec de simples lames polarisantes, puis depuis une vingtaine d'années à l'aide de modulateurs à cristaux liquides (CL). Ces derniers présentent un avantage considérable par rapport aux lames polarisantes: ils permettent des vitesses de modulation de la polarisation de la l

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11

Jones, Julia Craven. "Infrared Hyperspectral Imaging Stokes Polarimeter." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/145409.

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This work presents the design, development, and testing of a field portable imaging spectropolarimeter that operates over the short-wavelength and middle-wavelength portion of the infrared spectrum. The sensor includes a pair of sapphire Wollaston prisms and several high order retarders to produce the first infrared implementation of an imaging Fourier transform spectropolarimeter, providing for the measurement of the complete spectropolarimetric datacube over the passband. The Wollaston prisms serve as a birefringent interferometer with reduced sensitivity to vibration when compared to an une

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12

Murali, Sukumar. "Analysis of an Interferometric Stokes Imaging Polarimeter." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194148.

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Estimation of Stokes vector components from an interferometric fringe encoded image is a novel way of measuring the State Of Polarization (SOP) distribution across a scene. Imaging polarimeters employing interferometric techniques encode SOP information in a single image in the form of fringes. The lack of moving parts and the use of a single image eliminates the problems of conventional polarimetry - vibration, spurious signal generation due to artifacts, beam wander and the need for registration routines. However, interferometric polarimeters are limited by narrow band pass operation and sho

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13

Mu, Tingkui, Zeyu Chen, Chunmin Zhang, and Rongguang Liang. "Optimal design and performance metric of broadband full-Stokes polarimeters with immunity to Poisson and Gaussian noise." OPTICAL SOC AMER, 2016. http://hdl.handle.net/10150/622954.

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In this paper, the design, optimization and analysis of broadband full-Stokes polarimeters with immunity to both Poisson and Gaussian noise are presented. Different from the commonly-used optimization metrics such as, the condition number (CN), the equally weighted variance (EWV), or the polarimetric modulation efficiency (PME) for Gaussian noise, the optimally balanced condition for Poisson noise (BCPN) is, for the first time, proposed and used as a metric for the optimization of polarimeters. The numerical results show that the polarimeters optimized with the BCPN have immunity to both Poiss

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14

Hudson, Derek Lavell. "Improving Accuracy in Microwave Radiometry via Probability and Inverse Problem Theory." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3244.pdf.

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15

Bleunven, Angel. "Contribution à la conception d'un système d'imagerie polarimétrique en vue d'applications pour la détection précoce du mélanome." Thesis, Brest, 2016. http://www.theses.fr/2016BRES0088/document.

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Le mélanome est un cancer rare de la peau qui se développe à partir des cellules responsables de la pigmentation : les mélanocytes. Depuis quelques années, nous observons une augmentation significative du nombre de personnes atteintes par cette maladie, de mauvais pronostic et très agressive (132 000 nouveaux cas chaque année dans le monde). Le taux de mortalité de ce cancer est très élevé en raison de la rapidité de propagation des cellules cancéreuse dans d’autres régions du corps. En France, on remarque un nombre relativement élevé de cas détectés, plus particulièrement en Bretagne. La tume

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16

Brugés, Javier Mauricio. "Surface characterization methods for quality assessment of polyethylene-coated paperboard." Licentiate thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41710.

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In manufacturing processes, the quality of a product often depends on its surface, and careful control of surface properties is critical to meet customer requirements. A thin layer of polyethylene (PE) is applied to paperboard to increase barrier functionality and high optical quality of the product. For PE-coated paperboard, product quality inspection is performed at the end of the manufacturing process by taking a portion of the reel to the laboratory for quality inspection. These associated offline characterization methods are destructive and time consuming and are representative of only a

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17

Panascí, Marco. "Vliv dlouhých optovláknových tras na polarizační stav světla a jejich využití pro napájení polarizačních senzorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442367.

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This diploma thesis deals with the influence of long fiber optic paths on the polarization state of light and their use for powering polarization sensors. The aim of the diploma thesis was to design the arrangement of optical fiber components so that the polarization properties of light at the end of the path are further usable for sensory purposes. Four partial measurements with a long path (in a laboratory setting, laying in the ground, on a curtain, under the influence of external influence) and one measurement without a path under the influence of external influence were designed. The over

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18

Velič, Ladislav. "Měření vlastností polarizovaného světla na výstupu optovláknového senzoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413106.

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19

Tsung-TseYang and 楊宗澤. "Extracting Optical Parameters of a Liquid Crystal Cell by Using Stokes Polarimetry." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/88765082506562998877.

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20

Li-HanLin and 林立恒. "Study on Glucose Concentration with Scattering Effect Based Upon Stokes-Mueller Polarimetry." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/82726317286712609716.

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碩士<br>國立成功大學<br>機械工程學系<br>102<br>A new scheme to measure the glucose concentration with scatters by polarimetry is proposed. Diabetics would benefit greatly from a device capable of providing continuous noninvasive monitoring of their blood glucose levels. The presence of optical activity object dissolved in an aqueous solution modifies the refractive index of the solution and therefore has an influence on the optical properties. Hence a physical correlation may exist between the optical scattering coefficient and concentration of optical activity substance. In this study, the measuring techni

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21

Jian-XiangLin and 林建翔. "Research of Measuring Glucose Concentration with Scattering Effect by Using Stokes-Mueller polarimetry." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/17057491597961811596.

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22

FitzGerald, William. "Broadband IR stokes polarimetry for the electro-optic characterization of cadmium zinc telluride." Thesis, 2017. https://dspace.library.uvic.ca//handle/1828/8900.

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The infrared portion of the electro-magnetic spectrum is a challenging region in which to perform optical techniques, limited by both device efficiency and availability. In this dissertation, a new optical technique is introduced to facilitate polarization state measurement across the mid-IR. In addition, cadmium zinc telluride (CZT) is investigated as a potential new material suitable for electro-optic devices which function in the mid-IR, while also being characterized by other optical analysis methods. Thin film interference is discussed as it relates to optical techniques and electro

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23

Cenacchi, Elena [Verfasser]. "Full stokes polarimetry with the Effelsberg 100-m radio telescope / vorgelegt von Elena Cenacchi." 2009. http://d-nb.info/1006640665/34.

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24

Yeng-ChengLiu and 劉彥成. "Spectroscopic Stokes Polarimetry Based on Fourier Transform Spectrometer and Phase Error Calibration in Michelson Interferometer." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/21116694324454881524.

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碩士<br>國立成功大學<br>機械工程學系<br>102<br>Three methods are proposed for measuring the spectroscopic/monochromatic Stokes parameters using a Fourier transform spectrometer. In the first method, the parameters are extracted using an optical setup comprising a white light source, a polarizer set to 0°, a quarter-wave plate and a scanning Michelson interferometer. In the proposed approach, the parameters are extracted from the intensity distributions of the interferograms produced with the quarter-wave plate rotated to 0°, 22.5°, 45° and -45°, respectively. In the second approach, the interferograms of tw

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25

Wei-TingChen and 陳威廷. "Research of using new dynamic dual-wavelength Stokes-Mueller matrix polarimetry for non-invasive glucose measurement." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/r5k23q.

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碩士<br>國立成功大學<br>機械工程學系<br>106<br>In this study, two different Stokes-Mueller polarimetry systems are proposed for extracting circular birefringence (CB) and depolarization index (Δ) of glucose solution. First system namely dual-wavelength Stokes Mueller polarimetry system utilizes two different wavelength laser sources (633nm and 532nm) and multiple linear regression (MLR) method to minimize the result deviation. Additionally, electro-optic modulators (EO) are used to reduce the system error caused by moving parts and manually adjustment. The resolution of measuring 2% phantom solution by this

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26

Cookson, Christopher James. "Retinal Imaging: Acquisition, Processing, and Application of Mueller Matrix Confocal Scanning Laser Polarimetry." Thesis, 2013. http://hdl.handle.net/10012/7597.

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The focus of this thesis is the improvement of acquisition and processing of Mueller matrix polarimetry using a confocal scanning laser ophthalmoscope (CSLO) and the application of Mueller matrix polarimetry to image the retina. Stepper motors were incorporated into a CSLO to semi-automate Mueller matrix polarimetry and were used in retinal image acquisition. Success rates of Fourier transform based edge detection filters, designed to improve the registration of retinal images, were compared. The acquired polarimetry images were used to reassess 2 image quality enhancement techniques, Mueller

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27

Quoc-HungPhan and 潘國興. "Stokes-Mueller matrix polarimetry for biological sensing and characterization of optical/physical property of thin film with rough surface." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/97106698026952987008.

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28

"Metasurface-Based Optoelectronic Devices for Polarization Detection and Ultrafast Optical Modulation." Doctoral diss., 2020. http://hdl.handle.net/2286/R.I.62822.

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abstract: Optical metasurfaces, i.e. artificially engineered arrays of subwavelength building blocks supporting abrupt and substantial light confinement, was employed to demonstrate a novel generation of devices for circularly polarized detection, full-Stokes polarimetry and all-optical modulation with ultra-compact footprint and chip-integrability. Optical chirality is essential for generation, manipulation and detection of circularly polarized light (CPL), thus finds many applications in quantum computing, communication, spectroscopy, biomedical diagnosis, imaging and sensing. Compared to n

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Wang, Wen-Zhe, and 王文哲. "Visualizing Skin Lesions with Stokes’ Polarimeter Based Second Harmonic Generation Microscopy." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/92857260609353417350.

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碩士<br>國立陽明大學<br>生醫光電研究所<br>101<br>Dermatological diagnosis is usually done by visual examination or detailed biopsies with microscopy on the targeted specimen. The processes usually lack quantitative analysis, and may be time consuming if tissue culturing is required. This study focuses on the biopsy of scar tissues of human skin, including normal, hypertrophic, and keloid tissues, by analyzing the polarization states of second harmonic signals from the tissues with the novel four-channel Stokes’ polarimeter. A mode-locked Ti-sapphire laser, which generated 200 fs ultra-short pulses, is used t

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30

Thi-Thu-HienPham and 範秋賢. "Characterization on effective optical parameters of anisotropic materials and turbid media using Stokes polarimeter." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/17040847171982627902.

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博士<br>國立成功大學<br>機械工程學系碩博士班<br>100<br>A decoupled analytical technique based on the Mueller matrix method and the Stokes parameters is proposed for extracting nine effective parameters in linear birefringence (LB), linear dichroism (LD), circular birefrinegence (CB), and circular dichroism (CD), linear depolarization (L-Dep), and circular depolarization (C-Dep) properties of turbid media. In contrast to existing analytical models, the nine effective parameters are extracted in a totally decoupled manner. It is noted that the recent related studies did not show enough nine parameters of characte

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31

Lu, Yun-Xiang, and 陸韻翔. "Monitoring Thermal Denaturation of Starch granules by Stokes’ Polarimeter Based Second Harmonic Generation Microscopy." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/43338501727184308364.

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碩士<br>國立陽明大學<br>生醫光電研究所<br>101<br>Starch is one of the major components in our daily diet. It is also a natural second harmonic (SH) generator, with amylopectin as the active component. The molecular structure and optical activity of starch may well be reflected by SH. In this work, we investigated the polarization states of SH from starch by 4-channel based Stokes’ polarimeter. The change of SH and its polarization states are monitored throughout the denaturation processes for both dry and hydrated starch. It was found that SH disappears at the gelatinization temperature. The results are

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32

Fernandes, Pedro Francisco Santos Braga. "Polarimetric LiDAR for target characterization aiming at autonomous driving implementations." Master's thesis, 2020. http://hdl.handle.net/1822/73643.

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Dissertação de mestrado integrado em Engenharia Física (área de especialização em Dispositivos, Microssistemas e Nanotecnologias)<br>LiDAR is an active sensor, used to measure distances. By illuminating obstacles and measuring retro-reflected light, LiDAR is able to measure the distance to a particular obstacle, as well as predict the shape of that obstacle. In autonomous driving, the high precision and accuracy of LIDAR is an enormous asset for decision making and safety. The fact that it is a fundamental technology for autonomous driving means that large companies are allocating resources (

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33

Wen-HsiangHsieh and 謝文翔. "New Stokes-parameter-based Polarimeter for Determination of Optical Properties of Thin Film and Twisted Nematic Liquid Crystal Cell." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/58356005855369643179.

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34

Chih-Chao, Chang, and 張智超. "Using New Electro-Optically Modulated Circular Heterodyne Interferometer and Rotating-Wave-Plate Stokes Polarimeter Respectively for Measuring the Optical Rotation Angle." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/07929282429436386855.

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碩士<br>遠東科技大學<br>機械研究所<br>96<br>This paper develops two optical systems to measure the optical rotation angle of a chiral medium such that its concentration can be proportionally extracted, one is a new electro-optically modulated circular heterodyne interferometer using the phase-lock technique and the other is based on the Stokes-Mueller formalism and a rotating-wave-plate Stokes polarimeter. The measured samples are not only the solid chiral medium such as a half-wave plate and the chiral fluid as glucose solutions, but also the solid chiral medium manufactured by the sol-gel method. As comp

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