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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/055/03/0423-0431

    • Keywords

       

      Self-focusing; elliptic; Kerr-medium; self-phase modulation

    • Abstract

       

      Using a direct variational technique involving elliptic Gaussian laser beam trial function, the combined effect of non-linearity and diffraction on wave propagation of optical beam in a homogeneous bulk Kerr-medium is presented. Particular emphasis is put on the variation of beam width and longitudinal phase delay with the distance of propagation. It is observed that no stationary self-trapping is possible. The regularized phase is also seen to be always negative.

    • Author Affiliations

       

      Tarsem Singh1 Nareshpal Singh Saini1 Shyam Sunder Kaul1 2

      1. Department of Physics, Guru Nanak Dev University, Amritsar - 143 005, India
      2. Department of Physics, Sikh National College, Banga - 144 505, India

    • Dates

       
      Published
      September 2000
      Manuscript received
      14 June 1999
      Manuscript revised
      11 May 2000

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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