Results 31 to 40 of about 5,004,125 (344)
IEEE Photonics Journal, 2022 We propose a weakly-coupled ultra-flattened chromatic dispersion few-mode photonic crystal fiber (FM-PCF) supporting 10 vector modes (HE11a, HE11b, TM01, HE21a, HE21b, TE01, HE31a, HE31b, EH11a, EH11b) which works over a large range of wavelength across ...
Xiao Lei +5 more
doaj +1 more source
Confinement-Induced Resonances in Low-Dimensional Quantum Systems [PDF]
, 2010 We report on the observation of confinement-induced resonances in strongly interacting quantum-gas systems with tunable interactions for one- and two-dimensional geometry.
Elmar Haller +8 more
core +1 more source
Engineering transverse Bragg resonance waveguides for large modal volume lasers [PDF]
, 2003 We recently analyzed a new class of laser amplifier based on transverse Bragg reflection. We show that the unique properties of Bragg confinement make it possible through modal loss discrimination to achieve single-transverse-mode operation with ...
Choi, John M. +3 more
core +1 more source
Results in Optics, 2020 In this paper, we propose a simple circular photonic crystal fiber (SC-PCF) of silica core having six uniform air-holes and four uniform tiny air-holes arranged at the apexes of square inside the core.
Sanat Kumar Pandey +2 more
semanticscholar +1 more source
Sensors, 2020 A novel, rectangle-based, porous-core photonic crystal fiber (PCF) has been modeled for the efficient propagation of a THz wave. The performance of the anticipated model has been assessed using the finite element method (FEM) in the range of 0.5–1.5 THz.
Abdullah Al-Mamun Bulbul +3 more
doaj +1 more source
Applied Sciences, 2022 A direct algorithmic process can deal with the solution of the support–ground interaction in a circular tunnel excavation through the convergence-confinement method (CCM) with the concept of increment.
Yu-Lin Lee +5 more
doaj +1 more source
Quantum Noise and Polarization Fluctuations in Vertical Cavity Surface Emitting Lasers [PDF]
, 1997 We investigate the polarization fluctuations caused by quantum noise in quantum well vertical cavity surface emitting lasers (VCSELs). Langevin equations are derived on the basis of a generalized rate equation model in which the influence of competing ...
A. K. J. van Doorn +17 more
core +2 more sources
Photonics, 2022 A highly sensitive non-complex cored photonic crystal fiber sensor for hazardous chemical sensing with water, ethanol, and benzene analytes has been proposed and is numerically analyzed using a full-vector finite element method.
Abdul Mu’iz Maidi +4 more
doaj +1 more source
Radiation loss from inertially confined degenerate plasmas
Laser and Particle Beams, 2003 Bremsstrahlung is one of the most important energy loss mechanisms in achieving ignition, which is only possible above a threshold in temperature for a given fusion reaction and plasma conditions. A detailed analysis of the bremsstrahlung process in degenerate plasma points out that radiation energy loss is much smaller than the value given by the
SHALOM ELIEZER +3 more
openaire +1 more source
Polarization-dependent confinement losses in actual holey fibers [PDF]
IEEE Photonics Technology Letters, 2003 Through the real-model simulations, the polarization-dependent confinement losses in actual holey fibers are, for the first time, numerically demonstrated. Furthermore, it is confirmed that the interstitial holes caused by the packing of the capillaries play a role to significantly reduce the confinement losses.
Koshiba, Masanori, Saitoh, Kunimasa
openaire +2 more sources