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Nonlinear frequency shift of finite-amplitude electrostatic surface waves

Published online by Cambridge University Press:  13 March 2009

L. Stenflo  and
M. Y. Yu
L. Stenflo
Affiliation:
Department of Plasma Physics, Umeå UniversityS-90187 Umeå, Sweden
M. Y. Yu
Affiliation:
Ruhr University, D-4630 Bochum, Federal Republic of Germany
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Abstract

The problem concerning the appropriate form for the nonlinear frequency shift arising from slow density modulations of electrostatic surface waves in a semi-infinite unmagnetized plasma is reconsidered. The spatial dependence of the wave amplitude normal to the surface is kept general in order to allow for possible nonlinear attenuation behaviour of the surface waves. It is found that if the frequency shift is expressed as a function of the density and its gradient then the result is identical with that of Zhelyazkov (1987b), who assumed a linear exponential attenuation behaviour.

Type
Research Article
Information
Journal of Plasma Physics , Volume 41 , Issue 2 , April 1989 , pp. 239 - 242
Copyright
Copyright © Cambridge University Press 1989

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References

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