Results 91 to 100 of about 6,091 (303)
Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum
Advanced Materials, EarlyView.Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño +5 more
wiley +1 more source
Submonolayer Quantum Dots for High Speed Surface Emitting Lasers
Nanoscale Research Letters, 2007 We report on progress in growth and applications of submonolayer (SML) quantum dots (QDs) in high-speed vertical-cavity surface-emitting lasers (VCSELs).
Zakharov ND +17 more
doaj +1 more source
Photonics, 2020 We review the history, development, design principles, experimental operating characteristics, and specialized architectures of interband cascade lasers for the mid-wave infrared spectral region.
Jerry R. Meyer +6 more
doaj +1 more source
Fundamentals and applications of spatial dissipative solitons in photonic devices : [Chapter 6]
, 2009 We review the properties of optical spatial dissipative solitons (SDS). These are stable, self‐localized optical excitations sitting on a uniform, or quasi‐uniform, background in a dissipative environment like a nonlinear optical cavity.
Firth, W.J. +8 more
core +1 more source
Advanced Materials, EarlyView.This project developed a smart bandage‐like patch (a microneedle array) for repairing diabetic bone damage. It intelligently senses signals from infection and inflammation, then releases its medicines in a specific, timed sequence: first an antibacterial agent, then an anti‐inflammatory agent, and finally growth factors.
Yu Wang +10 more
wiley +1 more source
Mode structure of a vertical-cavity surface-emitting laser subject to optical feedback
, 2006 We present an analysis of the external cavity mode (ECM) structure of a vertical-cavity surface-emitting laser subject to optical feedback. We consider a model in which two transverse optical modes are excited.
Green, K +4 more
core
Optimization of an avionic VCSEL-based optical link through large signal characterization [PDF]
, 2008 Optical communication systems have been widely preferred for network communications, especially for Datacoms Local Area Network links. The optical technology is an excellent candidate for on-board systems due to the potential weight saving and EMC ...
Khadijetou S. Ly +7 more
core +1 more source
Single‐frequency and High Power Operation of 2–3 Micron VECSEL
, 2021 S.63-107This chapter provides a basic overview of mid-infrared (MIR) vertical external-cavity surface-emitting lasers (VECSELs) based on the (AlGaIn)(AsSb) materials system and introduces key developments concerning conversion efficiency and output power
Joachim Wagner +5 more
core +1 more source
Advanced Materials Interfaces, EarlyView.ABSTRACT This study demonstrates that weak magnetic fields (16–40 mT) increase the efficiency of the hydrogen evolution reaction (HER) in electrocatalysts based on non‐fullerene acceptor (NFA) derivatives IT‐4Cl and Y6. Electrochemical measurements reveal that the application of the magnetic field reduces the onset potential and increases the current ...
João Paulo Araujo Souza +7 more
wiley +1 more source
Spin induced gigahertz polarization oscillations in vertical-cavity surface-emitting laser devices
, 2011 Spin-controlled vertical-cavity surface-emitting lasers (VCSELs) have been intensively studied in recent years because of the low threshold feasibility and the nonlinearity above threshold, which make spin-VCSELs very promising for spintronic devices ...
Hofmann, M. R. +11 more
core +1 more source