强激光与粒子束2013，Vol.25Issue(5)：1261-1264,4.DOI:10.3788/HPLPB20132505.1261
小间隙异面电极结构的光导开关
Narrow-gap opposed-contact photoconductive semiconductor switch
摘要
Abstract
A kind of narrow-gap opposed-contact photoconductive semiconductor switch(PCSS) is described in this paper, and it will be used in the dielectric wall accelerator(DWA) in a near future. The switch we used in the experiment is an opposed contact GaAs PCSS whose electrode gap is 5 mm. When the bias pulsed voltage is between 15 kV and 22 kV, it works in the nonlinear mode. The pulsed laser, triggering the PCSS, is from the laser diode, and it has the wavelength, FWHM, rise-time, and peak power of about 905 nm, 20 ns, 3. 1 ns and 90 W, respectively. As a result, when the PCSS works at a low voltage, it has a long lifetime but poor performance; while, when the PCSS works at a high voltage and is triggered by a high peak power pulsed laser, it works well but has a shorter lifetime.关键词
介质壁加速器/光导开关/半导体激光器/脉冲激光/非线性模式Key words
dielectric wall accelerator/photoconductive semiconductor switch/laser diode/pulsed laser/nonlinear mode分类
信息技术与安全科学引用本文复制引用
王卫,夏连胜,谌怡,刘毅,邓建军..小间隙异面电极结构的光导开关[J].强激光与粒子束,2013,25(5):1261-1264,4.基金项目
国家自然科学基金项目(11035004) （11035004）
