Theory and simulation of one-dimensional Raman backward and forward scattering

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Abstract
Computer simulations and theory are used to illustrate the linear and nonlinear behavior or Raman backward and forward scattering in laser‐irradiated plasmas. The heated‐electron distributions, nonlinear Landau damping, bandwidth of the scattered light, and other results of nonlinear simulations in homogeneous and nonhomogeneous plasmas are described. The characteristics of Raman scattering in a plasma with a quite high background temperature (64 keV) are examined, which are relevant to CO2‐heated plasmas. Finally the effects of self‐generated magnetic fields are pointed out, which can reduce Raman scattering by inhibiting the transport of hot electrons, and the reduction of Raman scattering by use of laser light with a large bandwidth is described.