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Nonlinear interaction of resonant plasma oscillations

Published online by Cambridge University Press:  13 March 2009

G. J. Lewak  and
J. Ogunlana
G. J. Lewak
Affiliation:
Department of Applied Physics and Information Science, University of California, San Diego
J. Ogunlana
Affiliation:
Department of Applied Physics and Information Science, University of California, San Diego
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Abstract

Using the water-bag model of an electron plasma the nonlinear interaction of two plasma wave pulses (each of sufficiently narrow wave-number spectrum) is discussed. It is shown that, for the special case of a resonant (zero group velocity) pulse interacting with a non-resonant pulse, the interaction produces an effective slowing down of the group velocity of the non-resonant pulse. An application of this theory to the explanation of the apparent resonances at fractions of the plasma frequency observed in the ionosphere is discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 7 , Issue 2 , April 1972 , pp. 207 - 215
Copyright
Copyright © Cambridge University Press 1972

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References

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