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

P.K. Shukla; B. Eliasson; M. Marklund; L. Stenflo; Ioannis Kourakis; M. Parviainen; M.E. Dieckmann

doi:10.1063/1.2198205

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

P.K. Shukla, B. Eliasson, M. Marklund, L. Stenflo, Ioannis Kourakis, M. Parviainen, M.E. Dieckmann

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The nonlinear interaction between two laser beams in a plasma is investigated in the weakly nonlinear and relativistic regime. The evolution of the laser beams is governed by two nonlinear Schrodinger equations that are coupled with the slow plasma density response. A nonlinear dispersion relation is derived and used to 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. (c) 2006 American Institute of Physics.

Original language	English
Article number	053104
Pages (from-to)	053104-1-053104-7
Number of pages	7
Journal	Physics of Plasmas
Volume	13
Issue number	5
DOIs	https://doi.org/10.1063/1.2198205
Publication status	Published - May 2006

ASJC Scopus subject areas

General Physics and Astronomy
Condensed Matter Physics

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10.1063/1.2198205

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abstract = "The nonlinear interaction between two laser beams in a plasma is investigated in the weakly nonlinear and relativistic regime. The evolution of the laser beams is governed by two nonlinear Schrodinger equations that are coupled with the slow plasma density response. A nonlinear dispersion relation is derived and used to 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. (c) 2006 American Institute of Physics.",

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AU - Shukla, P.K.

AU - Eliasson, B.

AU - Marklund, M.

AU - Stenflo, L.

AU - Kourakis, Ioannis

AU - Parviainen, M.

AU - Dieckmann, M.E.

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AB - The nonlinear interaction between two laser beams in a plasma is investigated in the weakly nonlinear and relativistic regime. The evolution of the laser beams is governed by two nonlinear Schrodinger equations that are coupled with the slow plasma density response. A nonlinear dispersion relation is derived and used to 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. (c) 2006 American Institute of Physics.

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

Abstract

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