Compact dispersion relation for parametric instabilities of electromagnetic waves in dusty plasmas

Journal Article · Mon May 01 04:00:00 EDT 1995 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871366· OSTI ID:165177

Ma, J X ^[1]; Shukla, P K ^[2]

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1. Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230027 (China)
2. Institut for Theoretical Physics IV, Department of Physics and Astronomy, Ruhr-University Bochum, D-44780 Bochum (Germany)

A compact dispersion relation for parametric instabilities of an electromagnetic pump wave is derived, taking into account the dust-particle dynamics and the {ital dust}-{ital grain} {ital charge} {ital 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. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• OSTI ID: 165177
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 2; ISSN 1070-664X; ISSN PHPAEN
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISPERSION RELATIONS
ELECTROMAGNETIC FIELDS
FLUCTUATIONS
PARAMETRIC INSTABILITIES
PLASMA IMPURITIES