Laser transfer in plasma produced by CH foam
-
摘要: 报道了神光Ⅱ装置上激光膜相互作用的实验，实验利用能量计和光电管测量激光与CH薄膜作用前后的能量和时间波形的变化。结果表明：激光对CH薄膜透过率由作用产生的激光等离子体电子密度决定；功率密度为1.01014 W/cm2的激光与CH薄膜作用下，入射激光能量脉冲前沿与薄膜作用产生激光等离子体；在200 ps时，激光等离子体电子密度稀疏到临界密度以下，激光开始透过等离子体；在700 ps后，等离子体密度远低于临界密度，激光完全透过激光等离子体。Abstract: This paper reports the laser transfer in plasma produced by CH on Shengguang Ⅱ. The laser transmission rate was decided by the plasma density. When the laser incidence was 0.5 m CH on Shengguang Ⅱ, the plasma density would be under critical value after 200 ps, the laser would pass the plasma. When the plasma density was 1% critical density after 700 ps, the laser could pass the plasma completely.
-
Key words:
- laser plasma /
- critical density /
- transmission rate
-
点击查看大图
计量
- 文章访问数: 1169
- HTML全文浏览量: 238
- PDF下载量: 323
- 被引次数: 0
下载:
