Investigation of nonlinear kinetic effects induced by weak turbulencein Vlasov-Maxwell simulations of Backward Stimulated Raman Scattering

Details Investigation of nonlinear kinetic effects induced by weak turbulencein Vlasov-Maxwell simulations of Backward Stimulated Raman Scattering Investigation of nonlinear kinetic effects induced by weak turbulencein Vlasov-Maxwell simulations of Backward Stimulated Raman Scattering

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..apr.d1024g&link_type=abstract

American Physical Society, APS April Meeting, April 22-26, 2006, abstract #D1.024

Physics

Scientific paper

We report here our recent results from semi-lagrangian Vlasov-Maxwell simulations which have been performed for homogeneous or inhomogeneous (parabolic) profiles over a long time. A major role is played by the conventional Backward Stimulated Raman Scattering (B-SRS) for only a short time, after what trapping effects induce a new kinetic regime dominated by self-organized and self-sustained phase space holes induced by EPW vortex merging and similar to Bernstein-Greene-Kruskal (BGK) equilibria. Optical mixing was considered in simulations that means the start of the instability (B-SRS) was controlled by the injection of a low-amplitude electromagnetic probe allowing by the noiseless character of the Vlasov code. A new parametric interaction mechanism was observed involving the scattering off of the probe light by BGK-like structures. These results shows also that the fluid-like behavior at early times of simulation becomes afterwards fully kinetic, invalidating a fluid approach based on a usual three-wave model in this regime.

Affiliated with

Also associated with

No associations

Rating

Investigation of nonlinear kinetic effects induced by weak turbulencein Vlasov-Maxwell simulations of Backward Stimulated Raman Scattering does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Investigation of nonlinear kinetic effects induced by weak turbulencein Vlasov-Maxwell simulations of Backward Stimulated Raman Scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Investigation of nonlinear kinetic effects induced by weak turbulencein Vlasov-Maxwell simulations of Backward Stimulated Raman Scattering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1158478