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Enhanced Raman scattering of a rippled laser beam in a magnetized collisional plasma

Published online by Cambridge University Press:  01 March 2004

NARESHPAL SINGH SAINI  and
TARSEM SINGH GILL
NARESHPAL SINGH SAINI
Affiliation:
Department of Physics, Guru Nanak Dev University, Amritsar, India
TARSEM SINGH GILL
Affiliation:
Department of Physics, Guru Nanak Dev University, Amritsar, India
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Abstract

In the laser–plasma interaction experiments, self-focusing and filamentation affect quite a large number of other parametric processes including stimulated scattering processes. Nonlinearity considered in the present problem is the collisional type. The coupling between the main beam, ripple, and excited electron plasma wave is strong. Authors have investigated the growing interaction of a rippled laser beam with an electron plasma wave leading to enhanced Raman scattering. An expression for scattered power is derived and the effect of the externally applied magnetic field on the enhancement of scattered power is observed. From computational results, it is observed that the effect of increased intensity of the main beam leads to suppression of power associated with the Raman scattered wave.

Keywords

Collisional plasmaCouplingRaman scatteringRippled laser beam
Type
International Conference on the Frontiers of Plasma Physics and Technology
Information
Laser and Particle Beams , Volume 22 , Issue 1 , March 2004 , pp. 35 - 40
Copyright
2004 Cambridge University Press

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