Results 31 to 40 of about 21,925,565 (312)

The PVLAS experiment: measuring vacuum magnetic birefringence and dichroism with a birefringent Fabry-Perot cavity [PDF]

open access: yes, 2015
Vacuum magnetic birefringence was predicted long time ago and is still lacking a direct experimental confirmation. Several experimental efforts are striving to reach this goal, and the sequence of results promises a success in the next few years.
Della Valle, F.   +7 more
core   +4 more sources

High Birefringent ENZ Photonic Crystal Fibers [PDF]

open access: yes2018 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2018
A novel photonic crystal fiber (PCF) design that has a simple circular air hole configuration is reported that yields a very high birefringence. The enhanced birefringence is achieved by filling a select number of the air holes in its cladding with an epsilon-near-zero (ENZ) material to break the index symmetry of its X- and Y-polarization states ...
Tianyu Yang   +3 more
openaire   +1 more source

Gravitational-Wave Implications for the Parity Symmetry of Gravity at GeV Scale

open access: yes, 2021
Gravitational waves generated by the coalescence of compact binary open a new window to test the fundamental properties of gravity in the strong-field and dynamical regime.
Niu, R., Wang, Y., Zhao, W., Zhu, T.
core   +2 more sources

Magnetic Field Measurements Based on Terfenol Coated Photonic Crystal Fibers

open access: yesSensors, 2011
A magnetic field sensor based on the integration of a high birefringence photonic crystal fiber and a composite material made of Terfenol particles and an epoxy resin is proposed.
Carla C. Kato   +4 more
doaj   +1 more source

Multiple designs with broad applicability for enhancing birefringence in low-loss terahertz HC-ARF

open access: yesResults in Physics, 2023
The use of hollow-core anti-resonant fiber (HC-ARF) as a transmission medium for the terahertz (THz) frequency range is attracting increasing attention from researchers. This paper introduces a low-loss, high birefringence anti-resonant fiber.
Zihan Liu   +5 more
doaj   +1 more source

Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]

open access: yes, 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.
Cranch, G A   +2 more
core   +1 more source

Thermal Sensitivity of Birefringence in Polarization-Maintaining Hollow-Core Photonic Bandgap Fibers

open access: yesPhotonics, 2023
Polarization-maintaining (PM) fiber is the core sensitive component of a fiber optic gyroscope (FOG); its birefringence temperature stability is crucial for maintaining accuracy. Here, we systematically investigated the structural thermal deformation and
Lidong Wang   +6 more
doaj   +1 more source

Hydrogen sensor based on high-birefringence fiber loop mirror with sol-gel Pd/WO3 coating

open access: yesSensors and Actuators B: Chemical, 2017
Ya‐nan Zhang   +5 more
semanticscholar   +3 more sources

Hollow-core photonic quasicrystal fiber with high birefringence and ultra-low nonlinearity

open access: yes, 2020
A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-quality light wave propagation with high polarization maintaining performance and low nonlinearity.
Zhuang Huo, E. Liu, Jianjun Liu
semanticscholar   +1 more source

Polarization and dispersion properties of elliptical hole golden spiral photonic crystal fiber [PDF]

open access: yes, 2010
An elliptical air-hole golden spiral photonic crystal fiber (EGS-PCF) is analyzed with the full-vectorial finite element method. The air-holes in the EGS-PCF are arranged in a spiral pattern governed by the Golden Ratio, where the design has been ...
A. Agrawal   +14 more
core   +1 more source

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