skip to main content

Title: Effects of relativistic electron temperature on parametric instabilities for intense laser propagation in underdense plasma

Effects of relativistic electron temperature on stimulated Raman scattering and stimulated Brillouin scattering instabilities for high intensity lasers propagating in underdense plasma are studied theoretically and numerically. The dispersion relations for these instabilities are derived from the relativistic fluid equation. For a wide range of laser intensity and electron temperature, it is found that the maximum growth rate and the instability region in k-space can be reduced at relativistic electron temperature. Particle-in-cell simulations are carried out, which confirm the theoretical analysis.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [5]
  1. Key Laboratory for Laser Plasmas (MoE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)
  2. Department of Mechanical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627 (United States)
  3. (United States)
  4. East-West Space Science Center, University of Maryland, College Park, Maryland 20742 (United States)
  5. (United Kingdom)
Publication Date:
OSTI Identifier:
22403254
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 11; Other Information: (c) 2014 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; BRILLOUIN EFFECT; DISPERSION RELATIONS; ELECTRON TEMPERATURE; LASERS; PARAMETRIC INSTABILITIES; PLASMA; RAMAN EFFECT; RELATIVISTIC RANGE