Results 51 to 60 of about 12,922 (291)
High-reflectivity broadband distributed Bragg reflector lattice matched to ZnTe
, 2009 We report on the realization of a high quality distributed Bragg reflector with both high and low refractive index layers lattice matched to ZnTe. Our structure is grown by molecular beam epitaxy and is based on binary compounds only. The high refractive
Figge, S. +3 more
core +1 more source
Dynamic properties of silicon-integrated short-wavelength hybrid-cavity VCSEL [PDF]
, 2016 We present a vertical-cavity surface-emitting laser (VCSEL) where a GaAs-based "half-VCSEL" is attached to a dielectric distributed Bragg reflector on silicon using ultra-thin divinylsiloxane-bis-benzocyclobutene (DVS-BCB) adhesive bonding, creating a ...
Baets, Roel +6 more
core +1 more source
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
Multiwavelength distributed Bragg reflector fibre laser
Electronics Letters, 2006 A short-cavity continuous-wave multiwavelength distributed Bragg reflector fibre laser is described which stably generated eight longitudinal modes of the cavity spaced approximately 0.4 nm (50 GHz). The relative intensity noise of the laser was dominated by anti-phase relaxation oscillations associated with gain cross-saturation.
S. Pradhan, G.E. Town, K.J. Grant
openaire +1 more source
Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +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
Analysis of self-pulsating three-section DBR lasers [PDF]
, 2005 The characteristics of a three-section distributed Bragg reflector laser showing self-pulsation have been analyzed using a large signal time-domain traveling-wave simulator. The device dynamic properties have been investigated in all their complexity and
Bardella, Paolo, Montrosset, Ivo
core +1 more source
Advanced Functional Materials, EarlyView.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Photonics, 2023 A multispectral superconducting nanowire single-photon detector (SNSPD) that is sensitive to different incident photon wavelength bands, is proposed. The SNSPD consists of a distributed Bragg reflector (DBR), a gold mirror, and two regions employing four
Ping-Han Wu +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous
Mingfeng Xu +5 more
wiley +1 more source