Convective amplification of stimulated Raman backscattering in inhomogeneous plasmas

Abstract EN

In this work we derive analytically a set of equations that describe the slow coupling process of Raman backscattering in an inhomogeneous medium in which the plasma density is a linear ramp.

Then we consider the convective amplification of the Raman instability in the underdense inhomogeneous plasma taking into consideration the collision damping in addition to the background inhomogeneity.