https://doi.org/10.1140/epjd/e2015-60118-4
Regular Article
Effect of light absorption on relativistic self-focusing of Gaussian laser beam in plasma
1 Department of Physics, Devchand College, Arjunnagar, Kolhapur, Maharashtra, India
2 Department of Physics, Shivaji University, Kolhapur, Maharashtra, India
3 Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, India
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e-mail: sdpatilphy@rediffmail.com
Received: 21 February 2015
Received in final form: 24 April 2015
Published online: 25 June 2015
In the present paper, we have studied the effect of light absorption on relativistic self-focusing of Gaussian laser beam propagating through plasma. We have obtained the differential equation for beam width parameter by using parabolic equation approach under the usual WKB and paraxial approximations. The effect of light absorption on the behavior of beam-width parameter, normalized intensity and plasma dielectric function is presented graphically and discussed. It shows that absorption play an important role in weakening the relativistic self-focusing of laser beam during propagation in plasma and gives reasonably interesting results.
Key words: Plasma Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015
