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Effect of light absorption on relativistic self-focusing of Gaussian laser beam in plasma

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Abstract

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.

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Authors and Affiliations

  1. Department of Physics, Devchand College, Arjunnagar, Kolhapur, Maharashtra, India

    Sandip D. Patil

  2. Department of Physics, Shivaji University, Kolhapur, Maharashtra, India

    Mansing V. Takale

  3. Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, India

    Tarsem Singh Gill

Authors
  1. Sandip D. Patil
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  2. Mansing V. Takale
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  3. Tarsem Singh Gill
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Correspondence to Sandip D. Patil.

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Patil, S., Takale, M. & Gill, T. Effect of light absorption on relativistic self-focusing of Gaussian laser beam in plasma. Eur. Phys. J. D 69, 163 (2015). https://doi.org/10.1140/epjd/e2015-60118-4

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  • DOI: https://doi.org/10.1140/epjd/e2015-60118-4

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