https://doi.org/10.1051/epjconf/20135905012
The dependence of spatial autoresonance in SRS on kLλD
1 Centre de Physique Thorique, CNRS, Ecole Polytechnique, Palaiseau, France
2 CEA, DAM, DIF, 91297 Arpajon
3 Theoretical Physics Institute, Department of Physics, University of Alberta, Edmonton, Canada
a e-mail: chapman29@llnl.gov
Published online: 15 November 2013
Spatial autoresonance is investigated as a mechanism for the enhancement of stimulated Raman scattering (SRS) in the kinetic regime (kLλD > 0.29). Autoresonance in 3-wave simulations was demonstrated in a previous study [Chapman et al., Phys. Plasmas 17, 122317 (2010)]. These results are applied to particle-in-cell (PIC) simulations. Good agreement is found between PIC simulations and a 3-wave model using a nonlinear frequency shift beyond the regime usually referred to as “weakly kinetic”. Autoresonance is studied for a range of values of kLλD.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
