Results 21 to 30 of about 43,498 (286)

Zero-birefringence pressure-sensitive adhesives

open access: yesAIP 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

Polarization dynamics in spin‐VCSELs with integrated surface grating for high birefringence splitting

open access: yesElectronics Letters, 2023
Polarization dynamics in spin‐polarized vertical‐cavity surface‐emitting lasers (spin‐VCSELs) with high birefringence have recently been demonstrated to offer very high potential for optical data‐transmission systems that outperform their counterparts ...
Markus Lindemann   +6 more
doaj   +1 more source

Optical rheology of porcine sclera by birefringence imaging. [PDF]

open access: yesPLoS 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

Acoustic Birefringence Changes in the Base Metal and Heat Affected Zone of ASTM 1020 Steel under Plastic Deformation and Fatigue [PDF]

open access: yesE3S Web of Conferences, 2023
This paper deals with metallographic studies and ultrasonic investigations of acoustic birefringence in the base metal and heat affected zone of welded specimens of ASTM 1020 steel under uniaxial tension and low-cycle fatigue. We examined microstructural
Gonchar Alexander   +2 more
doaj   +1 more source

Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals

open access: yesNature 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

Laser-stimulated birefringence of Ga2O3-La2S2.95Se0.05 glasses for optical recording of information

open access: yesResults 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

A Linear Birefringence Measurement Method for an Optical Fiber Current Sensor

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   +1 more source

Comparison of intensity, phase retardation, and local birefringence images for filtering blebs using polarization-sensitive optical coherence tomography

open access: yesScientific 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

Photoinduced birefringence in azopolymers measured at 1550 nm [PDF]

open access: yesEPJ Web of Conferences
Azobenzenes are a class of compounds presenting photoisomerization capabilities that allow the writing and erasure of birefringence along a desired direction.
Soares Beatriz   +3 more
doaj   +1 more source

Birefringence-Managed Normal-Dispersion Fiber Laser Delivering Energy-Tunable Chirp-Free Solitons

open access: yesUltrafast 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

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