Results 41 to 50 of about 3,742 (297)
Realization of a Distributed Bragg Reflector for Propagating Guided Matter Waves [PDF]
Physical Review Letters, 2011 4 pages, 5 figures + supplementary material (2 pages, 2 figures)
Fabre, Charlotte M. +7 more
openaire +3 more sources
Optical Analysis of 1300 nm GaInNAsSb/GaAs Vertical Cavity Semiconductor Optical Amplifier
Zanco Journal of Pure and Applied Sciences, 2020 Vertical cavity semiconductor optical amplifiers (VCSOAs) based on GaInNAsSb active region is designed to operate in reflection mode at wavelength of 1300 nm.
Faten Adel Ismael Chaqmaqchee +2 more
doaj +3 more sources
Photonic band structure in a one-dimensional distributed Bragg reflector pillar
Materials Research Express, 2020 This paper aims to calculate the photonic band structure in a distributed Bragg reflector pillar. The one-dimensional periodic photonic pillar consists of alternating layers of GaAs and air.
Francis Segovia-Chaves +2 more
doaj +1 more source
Experimental and numerical study of Distributed-Bragg-Reflector tapered lasers [PDF]
, 2010 Access full text - https://doi.org/10.1007/s00340-009-3823-2We report results on experimental and numerical investigations of the output characteristics of edge-emitting distributed Bragg reflector tapered diode lasers emitting around 980 nm.
PASCHKE, K. +4 more
core +1 more source
High Reflectivity YDH/SiO2 Distributed Bragg Reflector for UV-C Wavelength Regime
IEEE Photonics Journal, 2018 A distributed Bragg reflector (DBR) composed of Y2O3-doped HfO2 (YDH)/SiO2 layers with high reflectivity spectrum centered at a wavelength of ∼240 nm is fabricated using radio-frequency magnetron sputtering.
Mohd Sharizal Alias +10 more
doaj +1 more source
Fast-Response Liquid Crystals for 6G Optical Communications
Crystals, 2021 We report two high birefringence and low viscosity nematic mixtures for phase-only liquid-crystal-on-silicon spatial light modulators. The measured response time (on + off) of a test cell with 2π phase change at 1550 nm, 5 V operation voltage, and 40 °C ...
Junyu Zou +3 more
doaj +1 more source
Anisotropic properties of pipe-GaN distributed Bragg reflectors
Nanoscale Advances, 2020 Polarization-dependent reflectance spectra of the pipe-GaN reflector show that it can be used as a polarized light source.
Chia-Jung Wu +9 more
openaire +3 more sources
Design of Photonic Crystal Membrane-Reflector-Based VCSELs
IEEE Photonics Journal, 2012 We present here the cavity design of distributed-Bragg-reflector-free ultracompact Fano-resonance photonic crystal membrane-reflector vertical-cavity surface-emitting lasers on silicon, which consists of a III-V quantum-well active region sandwiched in ...
D. Zhao +5 more
doaj +1 more source
IEEE Photonics Journal, 2021 We report the design, fabrication and characterization of a 1.55-μm dual-wavelength Distributed Bragg Reflector (DBR) laser photonic integrated circuit (PIC) chip for continuous-waves (CW) terahertz generation.
Qianwen Guo +7 more
doaj +1 more source
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source