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Nonlinear propagation of lower-hybrid waves in an inhomogeneous plasma

Published online by Cambridge University Press:  13 March 2009

M. Y. Yu ,
P. K. Shukla  and
K. H. Spatschek
M. Y. Yu
Affiliation:
Institut für Theoretische Physik, Ruhr-Universität Bochum, D-4630 Bochum, F.R. Germany
P. K. Shukla
Affiliation:
Institut für Theoretische Physik, Ruhr-Universität Bochum, D-4630 Bochum, F.R. Germany
K. H. Spatschek
Affiliation:
Fachbereich Physik, Universität Essen, D-4300 Essen, F.R. Germany
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Abstract

We investigate the problem of spatial depletion of propagating lower-hybrid waves in an inhomogeneous plasma. In particular, we consider the nonlinear evolution of a lower-hybrid pump which is coupled to a daughter lower-hybrid decay wave excited by low-frequency density perturbations. Our results show that pump depletion occurs when three-dimensional effects are included. This phenomenon competes with the filamentation of the pump caused by self- interaction. Implications to lower-hybrid heating experiments are discussed.

Information

Type
Research Article
Information
Journal of Plasma Physics , Volume 20 , Issue 2 , October 1978 , pp. 189 - 203
Copyright
Copyright © Cambridge University Press 1978

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