Results 1 to 10 of about 9,261 (301)

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

open access: yesSensors, 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   +5 more
doaj   +2 more sources

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

open access: yesSensors, 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   +5 more
doaj   +2 more sources

Birefringence measurements on crystalline silicon [PDF]

open access: bronzeClassical and Quantum Gravity, 2015
Crystalline silicon has been proposed as a new test mass material in third generation gravitational wave detectors such as the Einstein Telescope (ET). Birefringence can reduce the interferometric contrast and can produce dynamical disturbances in interferometers.
Krüger, C.   +6 more
openaire   +6 more sources

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

open access: yesAdvanced Science, 2021
Understanding and exploring the functional modules (FMs) consisting of local atomic groups can promote the development of the materials with functional performances.
Xin Zhou, Zhi-hua Yang
exaly   +2 more sources

PEN fluorescent birefringence sensor in ethanol volatilization measurement [PDF]

open access: diamondEPJ Web of Conferences
Through the fluorescence characteristics of polyethylene naphthalate (PEN) material under short-wavelength excitation, a boradband light source of visible wavelengths can be generated.
Twu Ruey-Ching, Qiu Shu-Quan
doaj   +2 more sources

Polymer Relaxation Times from Birefringence Relaxation Measurements [PDF]

open access: bronzeThe Journal of Chemical Physics, 1967
A theoretical description of the time dependence of induced birefringence in polymers, based on the ``pearl-necklace'' model, is presented, and relations between relaxation and frequency dependence methods are discussed. The relaxation theory is applied to the results of measurements of the longest relaxation time for the DNA from bacteriophage T2. The
D S, Thompson, S J, Gill
openaire   +3 more sources

Multi-Directional Strain Measurement in Fiber-Reinforced Plastic Based on Birefringence of Embedded Fiber Bragg Grating [PDF]

open access: goldSensors
Embedded fiber Bragg gratings are increasingly applied for in-situ strain measurement in fiber-reinforced plastics, integral to high-end aerospace equipment.
Chunhua Zhou   +4 more
doaj   +2 more sources

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

open access: yesJournal 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   +8 more
doaj   +1 more source

Research Progress of Stress Measurement Technologies for Optical Elements

open access: yesInternational 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   +4 more
doaj   +1 more source

Distributed Birefringence Measurement of a Polarization-Maintaining Fiber With an Extended Range Based on an Enhanced Brillouin Dynamic Grating

open access: yesIEEE Photonics Journal, 2020
A distributed birefringence measurement of a polarization-maintaining fiber (PMF) can be realized by using a Brillouin dynamic grating (BDG). However, the pump depletion decreases the intensity of the BDG along the PMF and limits the measurement range to
Taofei Jiang   +5 more
doaj   +1 more source

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