Kinetic Simulations of Stimulated Whistler Scattering in Magnetized Plasma

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.