用脉冲激光全息干涉术测量稠密等离子体电子密度分布  

THE MEASUREMENT OF PLASMA ELECTRONIC DENSITY DISTRIBUTION BY PULSE LASER HOLOGRAPHIC INTERFEROMETRY

作　　者：丰善[1] 王淑岩[1] 王国志[1] 郝志琦[1] 陈智[1] 李文洪[2] 郑志坚[2] 

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安710068 [2]中国工程物理研究院核物理与化学研究所,四川绵阳621000

出　　处：《光子学报》2001年第11期1339-1342,共4页Acta Photonica Sinica

摘　　要：利用脉冲激光作为探测光源 ,采用全息双曝光法对激光惯性约束核聚变高温高稠度等离子体的诊断 ,开发了原理上全新的诊断方法 .打靶主激光与探测激光实现严格同步 Δt≤ 1 0 - 11～ 1 0 - 10 s,可获得高空间分辨率 Δδ≤ 1 μm等离子体二维图象 (阴影图象和干涉图象 ) ,并保证时间分辨率 Δt达到 1 0 - 11s左右 .Using pulse laser as probing source,holographic double exposure is applied to diagnose laser intertia restrain nuclear fusion high temperature and high density plasma.It is a new method to diagnose.The main laser and probing laser are strictly synchronism Δt≤10 -11 ～10 -10 s,plasma two dimension image of high spatial resolution Δδ≤1μm can be obtained.Time resolution Δt can reach 10 -11 s.Recording plasma refracting power spatial distribution is the foundation of measuring density section change and computing parameters of plasma fluid dynamics.

关 键 词：稠密等离子体诊断 脉冲激光全息干涉术 电子密度分布 惯性约束核聚变 

分 类 号：TL612.12[核科学技术—核技术及应用]