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Nonlinear electromagnetic Eigen modes of a self created magnetized plasma channel and its stimulated Raman scattering

Published online by Cambridge University Press:  15 December 2011

Updesh Verma  and
A.K. Sharma
Updesh Verma*
Affiliation:
Govt. Degree College Ballarpur, Rampur, U.P., India
A.K. Sharma
Affiliation:
Center for Energy Studies, Indian Institute of Technology Delhi, New Delhi, India
*
Address correspondence and reprint requests to: Updesh Verma, Center for Energy Studies, Indian Institute of Technology Delhi, New Delhi-110016, India. E-mail: [email protected]
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Abstract

A theoretical formalism is developed to obtain the mode structure of right circularly polarized nonlinear laser Eigen mode in a self created plasma channel in the presence of an axial magnetic field. The nonlinearity in electron response arises due to relativistic mass effect and ponderomotive force induced density redistribution. The Eigen mode is seen to be unstable to stimulated Raman backscattering involving an electrostatic quasi-mode and a scattered electromagnetic wave. The growth rate increases with ambient magnetic field.

Keywords

Electromagnetic Eigen modeMagnetized plasma channelPonderomotive force theoretical modelRelativistic mass effectStimulated Raman scattering
Type
Research Article
Information
Laser and Particle Beams , Volume 29 , Issue 4 , December 2011 , pp. 471 - 477
Copyright
Copyright © Cambridge University Press 2011

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