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Title: Suppression of stimulated Brillouin instability of a beat-wave of two lasers in multiple-ion-species plasmas

Stimulated Brillouin instability of a beat-wave of two lasers in plasmas with multiple-ion-species (negative-ions) was studied. The inclusion of negative-ions affects the growth of ion-acoustic wave in Brillouin scattering. Thus, the growth rate of instability is suppressed significantly by the density of negative-ions. To obey the phase-matching condition, the growth rate of the instability attains a maxima for an appropriate scattering angle (angle between the pump and scattered sideband waves). This study would be technologically important to have diagnostics in low-temperature plasmas.
Authors:
; ;  [1]
  1. Department of Physics and Astrophysics, University of Delhi, Delhi 110 007 (India)
Publication Date:
OSTI Identifier:
22493808
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 1; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANIONS; BRILLOUIN EFFECT; COLD PLASMA; INSTABILITY; ION ACOUSTIC WAVES; ION DENSITY; LASERS