Results 41 to 50 of about 76,759 (221)

Complete Mueller matrix imaging polarimeter for evaluating optical components for structured light [PDF]

EPJ Web of Conferences, 2023
We present a complete Mueller matrix (MM) imaging polarimeter based on liquid-crystal retarders and a pixelated polarization camera. The polarimeter instrument is first calibrated and optimized, and then applied for the precise characterization of ...
Nabadda Esther, Sánchez-López María del Mar, Vargas Asticio, Lizana Angel, Campos Juan, Moreno Ignacio   +5 more
doaj   +1 more source

Approximation of full-boundary data from partial-boundary electrode measurements [PDF]

, 2017
Measurements on a subset of the boundary are common in electrical impedance tomography, especially any electrode model can be interpreted as a partial boundary problem. The information obtained is different to full-boundary measurements as modeled by the
Hauptmann, Andreas
core   +2 more sources

Fast near infra-red ferroelectric liquid crystal based Mueller matrix system for imaging and spectroscopy

EPJ Web of Conferences, 2010
The science and optical engineering of imaging Mueller Matrix Ellipsometry (MME) and Spectroscopic MME is currently being revitalized based on an efficient optimal design method, and through the use of the so-called Eig envalue Calibration Technique ...
Lindgren M., Ellingsen P.G., Sandvik Aas L.M., Kildemo M.   +3 more
doaj   +1 more source

Discrimination and quantification of scar tissue by Mueller matrix imaging with machine learning

Journal of Innovative Optical Health Sciences, 2023
Scarring is one of the biggest areas of unmet need in the long-term success of glaucoma filtration surgery. Quantitative evaluation of the scar tissue and the post-operative structure with micron scale resolution facilitates development of anti-fibrosis ...
Xi Liu, Yanan Sun, Weixi Gu, Jianguo Sun, Yi Wang, Li Li   +5 more
doaj   +1 more source

Near infra-red Mueller matrix imaging system and application to strain imaging

, 2010
We report on the design and performance of a near infra-red Mueller matrix imaging ellipsometer, and apply the instrument to strain imag- ing in near infra-red transparent solids.
Aas, Lars Martin Sandvik, Ellingsen, Pål Gunnar, Kildemo, Morten   +2 more
core   +1 more source

Controlling Exsolution Dynamics in High‐Entropy Oxides for Highly Active and Selective Acetylene Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Li+‐induced lattice distortion, valence variation, and local charge redistribution in a rock salt‐structured high‐entropy oxide enable controlled metal exsolution, altering the Cu–Ni–Co exsolution sequence and delivering a surface Cu0‐enriched catalyst with exceptional activity and ethylene selectivity for acetylene semi‐hydrogenation.
Hailing Yu, Caiqi Wang, Kevin M. Siniard, Qingju Wang, Yuanpeng Zhang, J. Anibal Boscoboinik, Xiao Tong, Eliseo Perez Gomez, Shuai Yuan, Arun S. Asundi, Oliver Mueller, Murillo Longo Martins, Yongqiang Cheng, Michael Richard Koehler, De‐en Jiang, Zili Wu, Zhenzhen Yang, Sheng Dai   +17 more
wiley   +2 more sources

Complex Spatial Illumination Scheme Optimization of Backscattering Mueller Matrix Polarimetry for Tissue Imaging and Biosensing

Biosensors
Polarization imaging and sensing techniques have shown great potential for biomedical and clinical applications. As a novel optical biosensing technology, Mueller matrix polarimetry can provide abundant microstructural information of tissue samples ...
Wei Jiao, Zheng Zhang, Nan Zeng, Rui Hao, Honghui He, Chao He, Hui Ma   +6 more
doaj   +1 more source

Spatially Addressable Polarimetric Calibration of Reflective-Type Spatial Light Modulator Using Mueller–Stokes Polarimetry

Frontiers in Physics, 2021
Mueller–Stokes polarimetry is emerging as a prominent noninvasive imaging technique to study the structural characteristics of an anisotropic medium. Spatial light modulator (SLM) is a programmable liquid crystal device (LCD), which is used to modulate ...
Vipin Tiwari, Yukti Pandey, Nandan S. Bisht   +2 more
doaj   +1 more source

A direct D-bar reconstruction algorithm for recovering a complex conductivity in 2-D [PDF]

, 2012
A direct reconstruction algorithm for complex conductivities in $W^{2,\infty}(\Omega)$, where $\Omega$ is a bounded, simply connected Lipschitz domain in $\mathbb{R}^2$, is presented.
A Von Herrmann, Bukhgeim A L, C N L Herrera, Calderón A P, DeAngelo M, Faddeev L D, Francini E, Frerichs I, Frerichs I, Hamilton S J, Isaacson D, J L Mueller, Knudsen K, Knudsen K, Knudsen K Lassas M Mueller J L Siltanen S, Murphy E, S J Hamilton, Siltanen S, Siltanen S, Tidswell A T, Vainikko G, Von Herrmann A   +21 more
core   +3 more sources

Distinguishing Malignant Melanoma and Benign Nevus of Human Skin by Retardance Using Mueller Matrix Imaging Polarimeter

Applied Sciences, 2023
Malignant melanoma is considered the most serious type of skin cancer. In clinical practice, the conventional technique based on subjective visual examination has a high rate of misdiagnosis for malignant melanoma and benign nevus.
Wen’ai Wang, Guoqiang Chen, Yanqiu Li
doaj   +1 more source