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Laser beam filamentation in a plasma with a steep density profile

Published online by Cambridge University Press:  09 March 2009

J. Limpouch ,
G. Lonĉar  and
R. Dragila
J. Limpouch
Affiliation:
Faculty of Nuclear Science and Physical Engineering, Technical University of Prague, Prague, Czechoslovakia
G. Lonĉar
Affiliation:
Faculty of Nuclear Science and Physical Engineering, Technical University of Prague, Prague, Czechoslovakia
R. Dragila
Affiliation:
Laser Physics Centre, Research School of Physical Sciences, The Australian National University, P.O. Box 4, Canberra, ACT 2601, Australia
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Abstract

A numerical analysis is presented of the electrostrictive filamentation of an electromagnetic wave in the presence of a reflected wave. Maxwell's equations are solved in the steadystate simultaneously with one fluid hydrodynamics and a simplified equation of state to obtain a self-consistent solution. The threshold for filamentation is shown to be often below the laser intensity necessary to modify the plasma density profile, however, even weak profile modification substantially affects the filamentation.

Type
Research Article
Information
Laser and Particle Beams , Volume 8 , Issue 1-2 , January 1990 , pp. 143 - 151
Copyright
Copyright © Cambridge University Press 1990

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References

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