Results 1 to 10 of about 9,843 (297)

Development of a Mercury Bromide Birefringence Measurement System Based on Brewster’s Angle [PDF]

Sensors, 2023
Mercury bromide (Hg2Br2) has been used to develop acousto-optic tunable filters (AOTFs) because it has several advantages, including a high refractive index, a broad optical bandwidth, and a relatively high figure of merit.
Oh-Tae Kwon, Geonwoo Kim, Hyungjin Bae, Jaeyeol Ryu, Sikwan Woo, Byoung-Kwan Cho   +5 more
doaj   +3 more sources

A Linear Birefringence Measurement Method for an Optical Fiber Current Sensor [PDF]

Sensors, 2017
In this work, a linear birefringence measurement method is proposed for an optical fiber current sensor (OFCS). First, the optical configuration of the measurement system is presented.
Shaoyi Xu, Haiming Shao, Chuansheng Li, Fangfang Xing, Yuqiao Wang, Wei Li   +5 more
doaj   +3 more sources

Comments about birefringence dispersion, with group and phase birefringence measurements in polarization-maintaining fibers [PDF]

Journal of the European Optical Society-Rapid Publications, 2023
A recent JEOS-RP publication proposed Comments about Dispersion of Light Waves, and we present here complementary comments for birefringence dispersion in polarization-maintaining (PM) fibers, and for its measurement techniques based on channeled ...
Villedieu Thomas, Lablonde Laurent, Boiron Hugo, Steib Adrien, Mélin Gilles, Robin Thierry, Cadier Benoît, Rattier Maxime, Lefèvre Hervé C.   +8 more
doaj   +3 more sources

Highly sensitive self-calibrating birefringence measurement based on anisotropic laser feedback polarization effect

PhotoniX
Accurate measurements of dual parameters of phase retardance and retardance axis of birefringent materials are of fundamental importance to their fabrication and applications.
Shiwei Deng, Xunda Chang, Jiayu Wang, Yifan Wang, Xin Xu, Kewu Li, Yidong Tan, Guangwei Hu   +7 more
doaj   +2 more sources

High Frequency Modulation Method for Measuring of Birefringence

EPJ Web of Conferences, 2013
A method of optical birefringence measurement is presented. It uses an el ectro-optic modulator for the high frequency modulation of polarization of the laser beam. The developed optical apparatus exhibits high sensitivity.
Šulc M., Kunc Š.
doaj   +2 more sources

Snapshot Multi-Wavelength Birefringence Imaging

Sensors
A snapshot multi-wavelength birefringence imaging measurement method was proposed in this study. The RGB-LEDs at wavelengths 463 nm, 533 nm, and 629 nm were illuminated with circularly polarized light after passing through a circular polarizer.
Shuang Wang, Xie Han, Kewu Li
doaj   +2 more sources

Birefringence measurement of the cellophane film

SPIE Proceedings, 2014
In this work we describe an experimental technique to measure the birefringence of the cellophane film that has good behavior as half wave retarder. This technique is achieved when the film is placed in a polariscope that consists of a light source and ...
Mauricio Ortiz-Gutiérrez, Juan Carlos Ibarra-Torres, Marco Antonio Salgado-Verduzco, Manuel Jorge Ordoñez-Padilla, Olivares-Perez, A., Perez-Cortes, M., Ordonez-Padilla, M.J., Ortiz-Gutierrez, M., Ibarra-Torres, J.C., Mario Pérez-Cortés, Salgado-Verduzco, M.A., Julio César Juárez-Ramírez, Arturo Olivares-Pérez, Juarez-Ramirez, J.C.   +13 more
core   +2 more sources

Birefringence measurements on crystalline silicon [PDF]

Classical and Quantum Gravity, 2015
19 pages, 6 figures, 2 ...
Krüger, C., Heinert, D., Khalaidovski, A., Steinlechner, J., Nawrodt, R., Schnabel, R., Lück, H.   +6 more
openaire   +3 more sources

Fluorine‐Driven Enhancement of Birefringence in the Fluorooxosulfate: A Deep Evaluation from a Joint Experimental and Computational Study

Advanced Science, 2021
Understanding and exploring the functional modules (FMs) consisting of local atomic groups can promote the development of the materials with functional performances.
Wenqi Jin, Wenyao Zhang, Abudukadi Tudi, Liying Wang, Xin Zhou, Zhihua Yang, Shilie Pan   +6 more
doaj   +1 more source

Research Progress of Stress Measurement Technologies for Optical Elements

International Journal of Optics, 2021
It is of great significance to measure the residual stress distribution accurately for optical elements and evaluate its influence on the performance of optical instruments in optical imaging, aviation remote sensing, semiconductor manufacturing, and ...
Shan Wei, Yajun Pang, Zhenxu Bai, Yulei Wang, Zhiwei Lu   +4 more
doaj   +1 more source