摘要
308nm准分子激光泵浦的氢拉曼散射介质中渗入一定比分的氦气,其输出的一阶斯托克斯光S1的脉宽将发生变化。实验获得不同氦比分的S1脉宽在20—45ns之间,与渗入氦的浓度有关。从氦对氢拉曼增益系数的影响,对实验结果进行了理论分析。
In this paper,the characteristics of stimulate Raman scattering pulse duration in He/H2 gas mixtures are investigated. The pulse duration of the first Stokes emission can be changed between 20~45ns by changing the ratio of He/H2 gas pressure with the 308nm pump pulse duration of 65ns.the effects of He on Raman gain in H2 is discussed to explain the experiments results.
出处
《强激光与粒子束》
EI
CAS
CSCD
1996年第4期607-610,共4页
High Power Laser and Particle Beams