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

P. K. Shukla; B. Eliasson; M. Marklund; L. Stenflo; I. 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, I. 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 Schrödinger 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 scatteringinstabilities 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.

Original language	English
Article number	053104
Number of pages	7
Journal	Physics of Plasmas
Volume	13
Issue number	5
DOIs	https://doi.org/10.1063/1.2198205
Publication status	Published - 10 May 2006

Keywords

instability
laser beams
plasma

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10.1063/1.2198205

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title = "Instability and dynamics of two nonlinearly coupled laser beams in a plasma",

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 Schr{\"o}dinger 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 scatteringinstabilities 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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T1 - Instability and dynamics of two nonlinearly coupled laser beams in a plasma

AU - Shukla, P. K.

AU - Eliasson, B.

AU - Marklund, M.

AU - Stenflo, L.

AU - Kourakis, I.

AU - Parviainen, M.

AU - Dieckmann, M.E.

PY - 2006/5/10

Y1 - 2006/5/10

N2 - 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 Schrödinger 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 scatteringinstabilities 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.

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 Schrödinger 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 scatteringinstabilities 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.

KW - instability

KW - laser beams

KW - plasma

UR - http://scitation.aip.org/content/aip/journal/pop/13/5/10.1063/1.2198205

U2 - 10.1063/1.2198205

DO - 10.1063/1.2198205

M3 - Article

SN - 1070-664X

VL - 13

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5

M1 - 053104

ER -

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

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