Results 11 to 20 of about 9,843 (297)
Measurement of the magnetic birefringence of noble gases [PDF]
Journal of the Optical Society of America B, 1984 The Cotton–Mouton constants of argon, krypton, and xenon have been measured relative to nitrogen at room temperature and ambient pressure for λ = 514.5 nm. Upper limits for helium and neon have been determined. The sensitivity of the apparatus was Δnmin = 0.8 × 10−14 for a measuring time of 1 sec.
CARUSOTTO S +5 more
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IEEE 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
Mitigation of the birefringence dispersion on the polarization coupling measurement in a long-distance high-birefringence fiber [PDF]
, 2012 Due to the birefringence dispersion, the polarization coupling parameter measurement in high-birefringence fiber decreases obviously with the fiber length, especially for long-distance fibers.
Jia, Dagong +6 more
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Residual stress measurement for injection molded components
Theoretical and Applied Mechanics Letters, 2016 Residual stress induced during manufacturing of injection molded components such as polymethyl methacrylate (PMMA) affects the mechanical and optical properties of these components.
Achyut Adhikari +2 more
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Measurements of flow-induced birefringence in microfluidics [PDF]
Biomicrofluidics, 2016 In this study, we demonstrate the use of a microscopic circular polariscope to measure the flow-induced birefringence in a microfluidic device that represents the kinematics of fluid motion optically. Unlike the commercial birefringence microscope employed in the previous studies, our approach is able to provide direct measurement of retardance, which ...
Chen-Li, Sun, Hung-Yen, Huang
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Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]
, 2006 Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H +2 more
core +1 more source
A transverse loading technique to enhance the pressure measurement capability of fibre Bragg gratings [PDF]
, 2008 A fibre optic pressure sensor based on the application of a transverse load onto an epoxy-resin material embedded over a sub-section of a fibre Bragg grating (FBG) is presented.
R. Correia +7 more
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Zero-birefringence pressure-sensitive adhesives
AIP Advances, 2012 We have developed zero-birefringence pressure-sensitive adhesives (PSAs) that exhibit almost no birefringence at any orientation of polymer chains. To evaluate the birefringence of PSAs quantitatively, we report a novel birefringence-measurement method ...
Hiroto Ito +4 more
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Recent Advances in High-Birefringence Fiber Loop Mirror Sensors
Sensors, 2007 Recent advances in devices and applications of high-birefringence fiber loopmirror sensors are addressed. In optical sensing, these devices may be used as strain andtemperature sensors, in a separate or in a simultaneous measurement.
José L. Santos +2 more
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IEEE Access, 2020 A high precision demodulation method based on least squares fitting for expanding the temperature measurement range of the fiber Lyot filter has been proposed and experimentally demonstrated. And a compact reflective Lyot filter has also been proposed to
Wei Li, Tiantian Ruan, Min Xia, Li Xia
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