激光等离子体3ω_0/2散射光时空特性研究  

STUDY ON TIME AND SPACE RESOLVED IMAGE OF 3ω 0/2 LIGHT IN LASER PLASMA

作　　者：赵雪薇[1,2] 张家泰[1,2] 郑志坚[1,2] 蒋小华[1,2] 郑坚[1,2] 

机构地区：[1]中国工程物理研究院核物理与化学研究所 [2]北京应用物理与计算数学研究所

出　　处：《强激光与粒子束》1998年第1期59-61,共3页High Power Laser and Particle Beams

基　　金：中国工程物理研究院科学基金

摘　　要：给出了１．０６μｍ激光照射金平面靶时激光等离子体的３ω０／２散射光时空谱的实验结果，得到双等离子体衰变的弛豫时间，以及等离子体冕区的膨胀速度，并与理论计算的结果进行了对比。The experimental measurement of the 3ω 0/2 scattered light in plasmas which were produced by 1.06μs laser light irradiating gold disk targets is reported in the paper. The experiment results showed the emission of the 3ω 0/2 light is obviously rippled and the breaking time between two emission is about 280ps, which is coincide with the calculation results from Two Plasmon Decay's saturation theory modeling. Also the average speed of the surface with 1/4 critical density moving to the opposite direction of the target nurmal is observed to be about 5.0×10 7cm/s.

关 键 词：等离子体 临界面 散射光 ICF 时空特性 激光 

分 类 号：TL612[核科学技术—核技术及应用]