Instability and dynamics of two nonlinearly coupled laser beams in a plasma

Details Instability and dynamics of two nonlinearly coupled laser beams in a plasma Instability and dynamics of two nonlinearly coupled laser beams in a plasma

2006-05-16

arxiv.org/abs/physics/0605128v1

Phys. Plasmas 13, 053104 (2006)

Physics

Plasma Physics

18 pages, 8 figures

Scientific paper

10.1063/1.2198205

We investigate the nonlinear interaction between two laser beams in a plasma in the weakly nonlinear and relativistic regime. The evolution of the laser beams is governed by two nonlinear Schroedinger equations that are coupled with the slow plasma density response. We study the growth rates of the Raman forward and backward scattering instabilities as well of the Brillouin and self-focusing/modulational instabilities. The nonlinear evolution of the instabilities is investigated by means of direct simulations of the time-dependent system of nonlinear equations.

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