Nonlinear scattering of two counterpropagating laser pulses in an underdense plasma

被引：0
作者：
A. A. Frolov
机构：
[1] Russian Academy of Sciences,Institute for High Energy Densities, Associated Institute for High Temperatures
来源：
Plasma Physics Reports | 2003年 / 29卷
关键词：
Radiation; Laser Pulse; Frequency Shift; Interaction Region; Short Pulse;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study is made of the interaction (“collision”) of two laser pulses with the same frequency but different durations, propagating toward one another in a low-density plasma. It is found that, in the interaction region, the excitation of small-scale plasma fields localized within a distance on the order of the length of the longer pulse is accompanied by the backscattering of each of the pulses. The frequency shift of the backscattered radiation and its duration depend strongly on the lengths of the interacting pulses. It is shown that the spectrum of the long backscattered radiation “tail” that arises behind the shorter pulse as a result of its interaction with the longer pulse contains satellites shifted from the laser frequency by the plasma frequency.
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页码：503 / 511
页数：8
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