Results 61 to 70 of about 13,087 (290)

Establishing an assay to evaluate d‐amino acid oxidase enzyme kinetics and inhibition using WST‐8 redox dye

FEBS Open Bio, EarlyView.
This study investigated a novel WST‐8‐based assay for evaluating d‐Amino acid oxidase (DAO) inhibitors. We confirmed its effectiveness using known inhibitors and found that uremic toxins possess relatively weak inhibitory activity compared to existing drugs.
Kahoko Miyake, Yuki Enoki, Yuka Nakazawa, Kazuaki Taguchi, Kazuaki Matsumoto   +4 more
wiley   +1 more source

All-fibre mode-locked laser using SMF-GIMF-SMF structure as artificial saturable absorber

Results in Optics
In this work, we proposed and experimentally demonstrated a combination of single mode fibre (SMF) with graded indexed multimode fibre (GIMF) to form an artificial saturable absorber. A SMF-GIMF-SMF structure is incorporated into Erbium-doped fibre laser
Yu Chen, Zian Cheak Tiu, Ahmad Haziq A. Rosol, Sin Jin Tan, Kaharudin Dimyati, Sulaiman Wadi Harun   +5 more
doaj   +1 more source

Study of a Graphene Saturable Absorber Film Fabricated by the Optical Deposition Method

IEEE Photonics Journal, 2019
A film composed of graphene saturable absorber ($GSA$) prepared for a passive mode-locking (PML) fiber laser is successfully fabricated by an optical deposition method.
Xinyue Zhu, Shufen Chen
doaj   +1 more source

Layered Ta₂NiS₅ Q-Switcher for Mid-Infrared Fluoride Fiber Laser

IEEE Photonics Journal, 2021
We have demonstrated the stable Q-switched Er-doped fluoride fiber laser with the help of the few-layered Ta2NiS5 in the mid-infrared spectral range. We fabricated the mid-infrared saturable absorber mirror (SAM) by depositing the layered Ta2NiS5 on a ...
Qinwen Duan, Lingling Yang, Yuan He, Longlong Chen, Jie Li, Lili Miao, Chujun Zhao   +6 more
doaj   +1 more source

Terahertz Saturable Absorption in Superconducting Metamaterials

, 2016
We present a superconducting metamaterial saturable absorber at terahertz frequencies. The absorber consists of an array of split ring resonators (SRRs) etched from a 100nm YBaCu3O7 (YBCO) film.
Averitt, Richard D., Keiser, George R., Zhang, Jingdi, Zhang, Xin, Zhao, Xiaoguang   +4 more
core   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source

In Situ Preparation of Thin-Film Q-Switches Based on Vanadium Dioxide for Pulsed Fiber Lasers

Photonics
In the presented work, erbium fiber lasers operating in the pulsed mode with a nonlinear element containing a vanadium oxide saturable absorber are demonstrated. The structure of the saturable absorber is based on a segment of thinned silica fiber coated
Dmitriy P. Sudas, Sergei M. Popov, Petr I. Kuznetsov   +2 more
doaj   +1 more source

Black Phosphorus Quantum Dots as an Efficient Saturable Absorber for Bound Soliton Operation in an Erbium Doped Fiber Laser

IEEE Photonics Journal, 2016
We have investigated the nonlinear and ultrafast photonics of chemically processed black phosphorus quantum dots (BPQDs) synthesized by the solvothermal treatment approach, with an average lateral size of about 2.48 $\pm$ 0.4 nm.
Zhiteng Wang, Yanhua Xu, Sathish Chander Dhanabalan, Joice Sophia, Chujun Zhao, Changwen Xu, Yuanjiang Xiang, Jianqing Li, Han Zhang   +8 more
doaj   +1 more source

Multi-megawatt, self-seeded Mamyshev oscillator

, 2018
We demonstrate a fiber oscillator that achieves 3 MW peak power, is easily started and is environmentally stable. The Mamyshev oscillator delivers 190-nJ pulses that can be compressed externally to 35 fs duration.
Frank W. Wise, Logan G. Wright, Michel Olivier, Pavel Sidorenko, Walter Fu   +4 more
core   +1 more source

Passive mode-locking in semiconductor lasers with saturable absorbers bandgap shifted through quantum well intermixing [PDF]

, 2014
Passive mode-locking in semiconductor lasers in a Fabry–Perot configuration with a bandgap blueshift applied to the saturable absorber (SA) section has been experimentally characterized.
Pusino, Vincenzo, Sorel, Marc, Strain, Michael J.   +2 more
core   +1 more source