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The ponderomotive force of an electromagnetic wave in a collisional plasma

Published online by Cambridge University Press:  13 March 2009

M. L. Sawley
M. L. Sawley
Affiliation:
Centre de Recherches en Physique des Plasmas, Association Euratom, Confédération Suisse, Ecole Polytechnique Fédérale de Lausanne, 21, av. des Bains, CH-1007Lausanne/Switzerland
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Abstract

The nonlinear propagation of a circularly polarized, electromagnetic wave in a collisional, infinite, magnetized plasma is considered. The presence of collisions leads to spatial variation in the amplitude of the wave field which gives rise to a time-independent ponderomotive force. The ponderomotive potential for a left (right) circularly polarized wave attains a maximum at the ion (electron) cyclotron frequency. In the vicinity of the cyclotron frequency it is shown to be always positive. A decrease in both the particle density and the real and imaginary parts of the complex wavenumber is shown to result from the effect of the ponderomotive force.

Type
Research Article
Information
Journal of Plasma Physics , Volume 32 , Issue 3 , December 1984 , pp. 487 - 493
Copyright
Copyright © Cambridge University Press 1984

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References

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