Dynamics of dark hollow Gaussian laser pulses in relativistic plasma

A. Sharma, S. Misra, S. K. Mishra, and I. Kourakis
Phys. Rev. E 87, 063111 – Published 25 June 2013

Abstract

Optical beams with null central intensity have potential applications in the field of atom optics. The spatial and temporal evolution of a central shadow dark hollow Gaussian (DHG) relativistic laser pulse propagating in a plasma is studied in this article for first principles. A nonlinear Schrodinger-type equation is obtained for the beam spot profile and then solved numerically to investigate the pulse propagation characteristics. As series of numerical simulations are employed to trace the profile of the focused and compressed DHG laser pulse as it propagates through the plasma. The theoretical and simulation results predict that higher-order DHG pulses show smaller divergence as they propagate and, thus, lead to enhanced energy transport.

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  • Received 15 February 2013

DOI:https://doi.org/10.1103/PhysRevE.87.063111

©2013 American Physical Society

Authors & Affiliations

A. Sharma1,*, S. Misra2, S. K. Mishra3, and I. Kourakis4

  • 1Institute of Physics, University of Pecs, 7621 Pecs, Hungary
  • 2Centre for Energy Studies, IIT Delhi, Hauz Khas, New Delhi, India
  • 3Institute for Plasma Research, Gandhinagar, India
  • 4Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN Belfast, Northern Ireland, United Kingdom

  • *Corresponding author: a_physics2001@yahoo.com

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Vol. 87, Iss. 6 — June 2013

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