NECESSARY AND SUFFICIENT CONDITIONS FOR SELF-FOCUSING OF SHORT ULTRAINTENSE LASER-PULSE IN UNDERDENSE PLASMA

被引：242

作者：

CHEN, XL

SUDAN, RN

机构：

[1] Laboratory of Plasma Studies, Cornell University, Ithaca

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.70.2082

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the propagation of a short intense laser pulse in underdense cold plasma. When no electron cavitation is present, a global invariant H is obtained, and its relation with self-focusing is studied. For relativistic self-focusing, H < 0 is a sufficient and necessary condition. For relativistic and ponderomotive self-focusing, H < 0 is sufficient but not necessary. Numerical simulations are performed to confirm the above points.

引用

页码：2082 / 2085

页数：4

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