Results 61 to 70 of about 57,281 (193)
High-finesse fiber Bragg gratings (FBGs) Fabry-Perot interferometers (FPIs) have shown great promise as sensitive ultrasonic sensors. However, the fabrication process of the sensors usually introduces birefringence to the fiber, which makes the sensor ...
Yupeng Zhu, Qiwen Sheng, Ming Han
doaj +1 more source
Orientation of optically trapped nonspherical birefringent particles [PDF]
While the alignment and rotation of microparticles in optical traps have received increased attention recently, one of the earliest examples has been almost totally neglected the alignment of particles relative to the beam axis, as opposed to about the ...
Gibson, Ursula J. +4 more
core +3 more sources
Detection of Vacuum Birefringence with Intense Laser Pulses
We propose a novel technique that promises hope of being the first to directly detect a polarization in the quantum electrodynamic (QED) vacuum. The technique is based upon the use of ultra-short pulses of light circulating in low dispersion optical ...
Aleksandrov +30 more
core +1 more source
In a previous study, structure of silica gels prepared in a high magnetic field was investigated. While a direct application of such anisotropic silica gels is for an optical anisotropic medium possessing chemical resistance, we show here their ...
Kaito, Chihiro +2 more
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Monitoring the Etching Process of Hi-Bi Fiber Through a Fiber Loop Mirror
A method for monitoring the etching process of Hi-Bi fiber is proposed and demonstrated. The birefringence of the etching fiber is accurately calculated by tracking the shift of the interference spectrum in a high-birefringence fiber loop mirror ...
Danling Wu, Jun Zhu, Hui Wang, Benli Yu
doaj +1 more source
High Frequency Modulation Method for Measuring of Birefringence
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 +1 more source
This study proposes a hollow-core anti-resonant fiber with a hybrid nested cladding structure, aimed at achieving high birefringence, broad bandwidth, and low confinement loss. The proposed fiber has a three-layer nested ring structure in the x-direction
Yuan Yang +7 more
doaj +1 more source
Highly birefringent, low-loss liquid crystals for terahertz applications
With growing interest in switchable devices for the THz frequency range, there is a strong demand for liquid crystals (LC) exhibiting both a high birefringence and a low absorption. We present the refractive index and absorption coefficient of the liquid
M. Reuter +6 more
doaj +1 more source
Magnetic Faraday rotation in lossy photonic structures
Magnetic Faraday rotation is widely used in optics and MW. In uniform magneto-optical materials, this effect is very weak. One way to enhance it is to incorporate the magnetic material into a high-Q optical resonator.
Figotin, A., Vitebskiy, I.
core +1 more source
The B-mode polarization of the cosmic microwave background (CMB) radiation is an excellent information channel for the detection of relic gravitational waves.
Li, Mingzhe, Zhao, Wen
core +2 more sources

