Temporal characterization of a self-modulated laser wakefield

被引：0
|
作者：
LeBlanc, SP
Downer, MC
Wagner, R
Chen, SY
Maksimchuk, A
Mourou, G
Umstadter, D
机构：
来源：
ADVANCED ACCELERATOR CONCEPTS | 1997年 / 398期
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暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The temporal envelope of plasma density oscillations in the wake of an intense (I similar to 4 x 10(18) W/cm(2), lambda = 1 mu m) laser pulse (400 fs) is measured using forward Thomson scattering from a copropagating, frequency doubled probe pulse. The wakefield oscillations in a fully ionized helium plasma (n(e)=3 x 10(19) cm(-3)) are observed to reach maximum amplitude (delta n(e)/n(e) similar to 0.1) 300 fs after the pump pulse. The wakefield growth (4 ps(-1)) and decay (1.9 ps(-1)) rates are consistent with the forward Raman scattering instability and beam loading, respectively.
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页码：651 / 663
页数：13
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