Efficient propagation of ultra-intense laser beam in dense plasma
Efficient propagation of ultra-intense laser beam in dense plasma
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DOI：
10.1088/0741-3335/57/6/064005
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发表时间：
2015-06-01
影响因子：
2.2
通讯作者：
Theobald, W.
中科院分区：
文献类型：
--
作者：
Habara, H.;Ivancic, S.;Theobald, W.
通过光学探测和质子探测研究了超强激光在延展的稠密等离子体中的传输。当a>；1kJ，10ps的激光传输到长密度标尺长的等离子体中时，通过对光学探针图像的分析，观察到了高达0.6n(C)的通道形成。质子径迹分析表明，沿等离子体通道形成了较强的电场和磁场，这可能导致观察到的激光轴上的准直电子束。这些结果为快速点火直接辐照方案的可行性提供了依据。
Ultra intense laser propagation in extended, dense plasma is investigated through optical and proton probing. When a >1 kJ, 10 ps laser propagates into a long-density scale length plasma, channel formation was observed up to 0.6 n(c) from the analysis of optical probe images. The proton track analysis shows the formation of strong electric and magnetic fields along the plasma channel, which may lead to the observed collimated electron beam on the laser axis. These results are promising for the feasibility of the direct irradiation scheme of fast ignition.