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Nonlinear interaction of a Gaussian electromagnetic beam with an electrostatic lower-hybrid wave: Brillouin scattering

Published online by Cambridge University Press:  13 March 2009

M. S. Sodha ,
Tarsem Singh  and
R. P. Sharma
M. S. Sodha
Affiliation:
Centre of Energy Studies, Indian Institute of Technology, Hauz Khas New Delhi - 110 016 India
Tarsem Singh
Affiliation:
Centre of Energy Studies, Indian Institute of Technology, Hauz Khas New Delhi - 110 016 India
R. P. Sharma
Affiliation:
Centre of Energy Studies, Indian Institute of Technology, Hauz Khas New Delhi - 110 016 India
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Extract

In the present paper we have studied the nonlinear interaction of an electrostatic lower-hybrid wave with a high-power Gaussian EM beam, propagating perpendicular to the static magnetic field in the ordinary mode in a collisionless hot magnetoplasma. On account of the Gaussian intensity distribution of the EM beam in a plane transverse to the direction of propagation, a d.c. component of the ponderomotive force becomes finite and leads to the modification of the background electron/ion density. Thus the electrostatic lower-hybrid wave gets coupled with the pump EM wave. This coupling can lead to the focusing of the lower-hybrid wave and if appropriate conditions are satisfied leads to Brillouin scattering.

Type
Articles
Information
Journal of Plasma Physics , Volume 25 , Issue 3 , June 1981 , pp. 403 - 412
Copyright
Copyright © Cambridge University Press 1981

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References

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