RAMAN BACKSCATTERING IN LASER WAKE-FIELD AND BEAT-WAVE ACCELERATORS

被引：22
|
作者：
TRIPATHI, VK
LIU, CS
机构：
[1] Laboratory for Plasma Research, University of Maryland, College Park
[2] Department of Physics, Indian Institute of Technology
来源：
PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1991年 / 3卷 / 02期
关键词：
D O I：
10.1063/1.859889
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
An intense short laser pulse propagating through a plasma undergoes stimulated Raman backscattering when oscillatory electron velocity upsilon-0 greater-than-or-equal-to 4c/(2-omega-0-tau-0-omega-p-tau-0)1/2, where omega-0 and tau-0 are the frequency and pulse duration of the laser and omega-p is the plasma frequency. In a laser wake-field accelerator employing short laser pulses with omega-p-tau-0 approximately 2-pi, this threshold is exceeded when upsilon-0/c greater-than-or-approximately-to 0.1. The threshold is smaller in a beat-wave accelerator where longer pulses are used.
引用
收藏
页码：468 / 470
页数：3
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