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: firstname.lastname@example.org
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.
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