Nonlinear wave generation by laser plasma interaction in an oscillating inhomogeneous magnetic field

The nonlinear generation of waves at combined frequencies in a thin inhomogeneous plasma layer due to interaction of waves of similar polarization (either S- or P- polarized) is analyzed. The effect of an external inhomogeneous magnetic field, oscillates at high frequency is considered (Hext = ez H (x) exp )-i wm t). wm is equal to the frequency of interacting waves or their sum. Oscillation of the magnetic field and type of polarization are found to affect, strongly, the wave generation