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      https://www.ias.ac.in/article/fulltext/pram/055/05-06/0813-0822

    • Keywords

       

      Self-focusing; Lie-optics; laser beam propagation; computer simulation in optics; laser-plasma interaction

    • Abstract

       

      Propagation algorithm for computer simulation of stationary paraxial self-focusing laser beam in a medium with saturating nonlinearity is given in Lie-optic form. Accordingly, a very natural piece-wise continuous Lie transformation that reduces to a restricted Lorentz group of the beam results. It gives rise to a matrix method for self-focusing beam propagation that is constructed and implemented. Although the results use plasma nonlinearities of saturable type, and a gaussian initial beam, these results are applicable for other media like linear optical fibers and to more general situations.

    • Author Affiliations

       

      D Subbarao1 R Uma1 Kamal Goyal1 2 Sanjeev Goyal1 3 Karuna Batra1 4

      1. Center for Energy Studies, Indian Institute of Technology, New Delhi - 110016, India
      2. Tata Consultancy Services, Gurgaon, India
      3. the Ideal Institute of Technology, Ghaziabad, India
      4. the Center for Research in Cognitive, Systems, NIIT, IIT Delhi Campus, India
    • Dates

       
  • Pramana – Journal of Physics | News

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