COMPACT DISPERSION-RELATION FOR PARAMETRIC-INSTABILITIES OF ELECTROMAGNETIC-WAVES IN DUSTY PLASMAS

被引：34
|
作者：
MA, JX [1 ]
SHUKLA, PK [1 ]
机构：
[1] RUHR UNIV BOCHUM, INST THEORET PHYS 4, DEPT PHYS & ASTRON, D-44780 BOCHUM, GERMANY
来源：
PHYSICS OF PLASMAS | 1995年 / 2卷 / 05期
关键词：
D O I：
10.1063/1.871366
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：
A compact dispersion relation for parametric instabilities of an electromagnetic pump wave is derived, taking into account the dust-particle dynamics and the dust-grain charge fluctuations caused by wave motions in unmagnetized dusty plasmas. Specific results for quasistationary modulational and filamentation instabilities are presented. It is found that thresholds of these instabilities are reduced in the presence of quasistationary plasma slow response involving charged dust grains. The present investigation should be useful in understanding the nonlinear propagation of intense electromagnetic waves through dusty space and laboratory plasmas. © 1995 American Institute of Physics.
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页码：1506 / 1509
页数：4
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