Calculations of Brillouin Backscatter in Laser-Produced Plasmas.

Abstract

Brillouin backscatter is calculated in an inhomogeneous laser produced plasma. Equations for the spatial dependence of the incident reflected and sound wave are numerically integrated through the underdense plasma. Effects investigated are the stabilizing effects of ion heating or nonlinear sound wave dissipation, flow velocity magnitude and gradient, electron heating and broad band incident laser light. We find that the effect of velocity gradient and broad band light can be very important in reducing the backscatter. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 24, 1981
Accession Number
ADA098045

Entities

People

  • Dennis G. Colombant
  • Wallace M. Manheimer

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Amplitude
  • Backscattering
  • Broadband
  • Distribution Functions
  • Doppler Effect
  • Frequency
  • Laser Produced Plasmas
  • Reflection
  • Simulations
  • Sound Waves
  • Spectra
  • Steady State
  • Subsonic Flow
  • Supersonic Flow
  • Waves

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Plasma Physics / Magnetohydrodynamics
  • Spectroscopy.

Technology Areas

  • Directed Energy
  • Microelectronics