Plasma channel formation and guiding during high intensity short pulse laser plasma experiments

被引：221
|
作者：
Krushelnick, K
Ting, A
Moore, CI
Burris, HR
Esarey, E
Sprangle, P
Baine, M
机构：
[1] USN,RES LAB,DIV PLASMA PHYS,WASHINGTON,DC 20375
[2] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093
来源：
PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.78.4047
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A plasma channel is formed behind a self-guided, subpicosecond, 2 TW laser pulse in a hydrogen gas jet plasma. The channel is produced from the radial expulsion of plasma ions due to charge separation created in the displacement (or cavitation) of plasma electrons by the large ponderomotive force of the laser. Using Thomson scattering diagnostics and mode structure measurements, an intense trailing laser pulse (I similar to 5 x 10(16) W/cm(2)) is observed to be guided throughout the length of this channel for about 20 Rayleigh lengths, approximately equal to the propagation length of the self-guided pump laser pulse.
引用
收藏
页码：4047 / 4050
页数：4
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