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A multi-D model for Raman amplification

Mathieu Colin 1, 2 Thierry Colin 1, 2
2 MC2 - Modélisation, contrôle et calcul
Inria Bordeaux - Sud-Ouest, UB - Université de Bordeaux, CNRS - Centre National de la Recherche Scientifique : UMR5251
Abstract : In this paper, we continue the study of the Raman amplification in plasmas that we have initiated in \cite{colins1} and \cite{colins2}. We point out that the Raman instability gives rise to three components. The first one is colinear to the incident laser pulse and counter propagates. In 2-D, the two other ones make a non-zero angle with the initial pulse and propagates forward. Furthermore they are symmetric with respect to the direction of propagation of the incident pulse. We construct a nonlinear system taking into account all these components and perform some 2-D numerical simulations.
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https://hal.inria.fr/inria-00332462
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Submitted on : Tuesday, October 21, 2008 - 9:47:19 AM
Last modification on : Wednesday, February 2, 2022 - 3:53:22 PM
Long-term archiving on: : Tuesday, October 9, 2012 - 2:05:45 PM

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Mathieu Colin, Thierry Colin. A multi-D model for Raman amplification. 2008. ⟨inria-00332462⟩

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