Results 21 to 30 of about 30,505 (307)
Birefringent optofluidic gratings
Optics Express, 2020 A set of parallel microfluidic channels behaving as a diffraction grating operating in the Raman-Nath regime has been fabricated and studied. The diffraction efficiency of such structure can be tuned by selecting a liquid with a particular refractive index and/or optical anisotropy.
Sergio Calixto +4 more
openaire +4 more sources
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
doaj +1 more source
Optical rheology of porcine sclera by birefringence imaging. [PDF]
PLoS ONE, 2012 To investigate a relationship between birefringence and elasticity of porcine sclera ex vivo using polarization-sensitive optical coherence tomography (PS-OCT).Elastic parameters and birefringence of 19 porcine eyes were measured.
Masahiro Yamanari +8 more
doaj +1 more source
Birefringence-Managed Normal-Dispersion Fiber Laser Delivering Energy-Tunable Chirp-Free Solitons
Ultrafast Science, 2022 Chirp-free solitons have been mainly achieved with anomalous-dispersion fiber lasers by the balance of dispersive and nonlinear effects, and the single-pulse energy is constrained within a relatively small range.
Dong Mao +8 more
doaj +1 more source
Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals
Nature Communications, 2023 Birefringence is at the heart of photonic applications. Layered van der Waals materials inherently support considerable out-of-plane birefringence.
Yanze Feng +15 more
doaj +1 more source
BIREFRINGENCE OF SPERMATOZOA [PDF]
The Journal of Cell Biology, 1972 In thermal denaturation experiments on sperm cells, described in the accompanying paper, it was found that squid sperm, when melted, lose both birefringence and morphological shape. Bull sperm, on the other hand, show no change of morphology, but their initial negative birefringence becomes positive.
James D. Bearden, Irwin J. Bendet
openaire +6 more sources
A Linear Birefringence Measurement Method for an Optical Fiber Current Sensor
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 +5 more
doaj +1 more source
Laser-stimulated birefringence of Ga2O3-La2S2.95Se0.05 glasses for optical recording of information
Results in Physics, 2019 We show an opportunity to change the birefringence of Ga2O3 – La2S2.95Se0.05 glasses doped by Er3+ and La3+ ions at λ = 1150 nm wavelength of cw He-Ne laser under illumination of the femtosecond laser.
A.M. El Naggar +9 more
doaj +1 more source
Scientific Reports, 2018 Polarization-sensitive optical coherence tomography (PS-OCT) allows the recording of depth-resolved polarimetric measurements. It has been reported that phase retardation and local birefringence images can noninvasively detect fibrotic area in blebs ...
Shinichi Fukuda +6 more
doaj +1 more source
Results in Physics, 2021 A novel hybrid hollow-core polarization-maintaining fiber is proposed by combining the photonic bandgap mechanism and anti-resonant effect. High birefringence can be achieved by introducing a pair of negative curvature anti-resonant layers into the air ...
Yuru Guo +3 more
doaj +1 more source