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Title: Relativistic Eulerian Vlasov simulations of the amplification of seed pulses by Brillouin backscattering in plasmas

We apply an Eulerian Vlasov code to study the amplification by Brillouin scattering of a short seed laser pulse by a long pump laser pulse in an underdense plasma. The stimulated Brillouin backscattering interaction is the coupling of the pump and seed electromagnetic waves propagating in opposite directions, and the ion plasma wave. The code solves the one-dimensional relativistic Vlasov-Maxwell set of equations. Large amplitude ion waves are generated. In the simulations we present, the density plateau of the plasma is n{sub e}=0.3 n{sub c} (n{sub c} is the critical density), which excludes spurious stimulated Raman scattering amplification (which can occur only if n{sub e}
Authors:
 [1] ; ;  [2]
  1. Institut de recherche d'Hydro-Québec (IREQ), Varennes, Québec J3X 1S1 (Canada)
  2. INRS-Énergie, Matériaux et Télécommunications, Université du Québec, Varennes, Québec J3X 1S2 (Canada)
Publication Date:
OSTI Identifier:
22410329
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 5; Other Information: (c) 2015 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; AMPLITUDES; BACKSCATTERING; BOLTZMANN-VLASOV EQUATION; BRILLOUIN EFFECT; DISTRIBUTION FUNCTIONS; ELECTROMAGNETIC RADIATION; ION PLASMA WAVES; LASERS; ONE-DIMENSIONAL CALCULATIONS; PHASE SPACE; PULSES; PUMPING; RAMAN EFFECT; RELATIVISTIC RANGE; SIGNALS