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Numerical Simulations of Self-Induced Plasma Smoothing of Spatially Incoherent Laser Beams

  • I. Ourdev
  • D. Pesme
  • W. Rozmus
  • V. Tikhonchuk
  • C. E. Capjack
  • R. Senda
Part of the NATO Science Series book series (ASHT, volume 61)

Abstract

Stimulated Brillouin Scattering (SBS) is a process in which the incident electromagnetic wave interacts with the ion acoustic fluctuations of the plasma resulting in a scattered electromagnetic wave and a growing resonant ion acoustic wave (IAW). This is a parametric instability which may produce a significant level of backscattered light. One way to reduce this level is to introduce a spatial incoherence using laser beam smoothing techniques [1].

Keywords

Parametric Instability Stimulate Brillouin Scattering Ponderomotive Force Angular Spread Incident Electromagnetic Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Pesme, D. (1987) Effects of temporal and induced spatial incoherence of parametric instabilities in laser plasma interactions, Annual Report CNRS-LULI 29, 1–16.Google Scholar
  2. 2.
    Schmitt, A. J. (1988) The eifect of optical smoothing on filamentation in laser plasmas, Phys.Fluids 31, 3079–3101.ADSCrossRefGoogle Scholar
  3. 3.
    Rose, H.A., and DuBois, D.F.(1992) Statistical properties of laser hot spots produced by a random phase plate Phys.Fluids B 5, 590–596.ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • I. Ourdev
    • 1
  • D. Pesme
    • 1
  • W. Rozmus
    • 1
  • V. Tikhonchuk
    • 1
  • C. E. Capjack
    • 2
  • R. Senda
    • 3
  1. 1.Department of PhysicsUniversity of AlbertaCanada
  2. 2.Department of Electrical EngineeringCanada
  3. 3.Computers and Network ServicesCanada

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