Nonlinear kinetic modeling and simulations of Raman scattering in a two-dimensional geometry
CEA, DAM, DIF, 91297 Arpajon Cedex, France
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Published online: 15 November 2013
In this paper, we present our nonlinear kinetic modeling of stimulated Raman scattering (SRS) by the means of envelope equations, whose coefficients have been derived using a mixture of perturbative and adiabatic calculations. First examples of the numerical resolution of these envelope equations in a two-dimensional homogeneous plasma are given, and the results are compared against those of particle-in-cell (PIC) simulations. These preliminary comparisons are encouraging since our envelope code provides threshold intensities consistent with those of PIC simulations while requiring computational resources reduced by 4 to 5 orders of magnitude compared to full-kinetic codes.
© Owned by the authors, published by EDP Sciences, 2013
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