Kinetic Simulations of Stimulated Whistler Scattering in Magnetized Plasma
ORAL
Abstract
We present simulations of stimulated whistler scattering using the one-dimensional kinetic
Vlasov code SAPRISTI [1]. Stimulated whistler scattering is a three-wave magnetized laser plasma
interaction where a pump light wave decays into a Langmuir wave and a low frequency
electromagnetic whistler wave. SAPRISTI solves the full non-linear kinetic dynamics of
electrons and ions in the longitudinal direction while implementing a cold-fluid momentum
equation in the transverse directions. We have updated the code to include an external magnetic
field in the longitudinal direction as well as the transverse dynamics required for magnetized
plasma waves. We solve the Maxwell and fluid-momentum transverse equations using a
staggered finite-difference method based on the Yee mesh. This talk will discuss the algorithm
development and results for simulations of stimulated whistler scattering focusing on the growth
of the whistler wave.
Vlasov code SAPRISTI [1]. Stimulated whistler scattering is a three-wave magnetized laser plasma
interaction where a pump light wave decays into a Langmuir wave and a low frequency
electromagnetic whistler wave. SAPRISTI solves the full non-linear kinetic dynamics of
electrons and ions in the longitudinal direction while implementing a cold-fluid momentum
equation in the transverse directions. We have updated the code to include an external magnetic
field in the longitudinal direction as well as the transverse dynamics required for magnetized
plasma waves. We solve the Maxwell and fluid-momentum transverse equations using a
staggered finite-difference method based on the Yee mesh. This talk will discuss the algorithm
development and results for simulations of stimulated whistler scattering focusing on the growth
of the whistler wave.
*Work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52- 07NA27344.
–
Publication: [1] S. Brunner, E. J. Valeo, Phys. Rev. Lett. 93, 145003 (2004).
Presenters
-
Ryan Lau
- University of Colorado, Boulder
- Sandia National Laboratories