Results 61 to 70 of about 57,251 (307)
Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
wiley +1 more source
Results in OpticsA distributed feedback picosecond (DFB) pulse laser has been designed with a single pulse energy of 5 pJ and a pulse width of 200 ps, resulting in a spectrum width of 0.12 nm.
Mingliang Long +7 more
doaj +1 more source
Scientific Reports, 2022 Optical generation of kilo-tesla scale magnetic fields enables prospective technologies and fundamental studies with unprecedentedly high magnetic field energy density.
Iu. V. Kochetkov +11 more
doaj +1 more source
Photoacoustics, 2023 Photoacoustic and thermoacoustic detection methods, including picosecond ultrasonic laser sonar based on metallic thin films, are widely used in industrial applications for their noninvasiveness.
Ting-Shan Lee, Chi-Kuang Sun
doaj +1 more source
Ultra Fast Nonlinear Optical Tuning of Photonic Crystal Cavities [PDF]
, 2006 We demonstrate fast (up to 20 GHz), low power (5 $\mu W$) modulation of photonic crystal (PC) cavities in GaAs containing InAs quantum dots. Rapid modulation through blue-shifting of the cavity resonance is achieved via free carrier injection by an above-
Dirk Englund +6 more
core +2 more sources
Advanced Functional Materials, EarlyView.We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong +6 more
wiley +1 more source
Research on fiber-solid hybrid picosecond laser technology based on serrated aperture beam shaping
Frontiers in PhysicsThe high beam fill factor of the flat-top laser can effectively increase the output power of the laser without damaging the components. A fiber-solid hybrid high-energy picosecond pulsed laser system was studied, which realized the gain bandwidth ...
Shun Li +9 more
doaj +1 more source
Coherent laser source for high frame-rate optical time-stretch microscopy at 1.0 μm [PDF]
, 2014 We demonstrate a coherent picosecond pulsed fiber laser for the high frame-rate optical time-stretch microscopy at 1.0 μm. The spectrum of a picosecond pulsed laser is commonly broadened before the time-stretch imaging, which however will degrade its ...
Lau, AKS +5 more
core +2 more sources
Advanced Functional Materials, EarlyView.Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin +7 more
wiley +1 more source
Generation of widely tunable picosecond pulses with large SMSR by externally injecting a gain-switched dual laser source [PDF]
, 2004 The authors demonstrate a procedure of generating picosecond optical pulses that are tunable over a wide wavelength range (65 nm) and have very high spectral purity side-mode suppression ratio [(SMSR)>60 dB].
Anandarajah, Prince M. +2 more
core +1 more source