Second Harmonics Excitation of Electron Longitudinal Electric Wave Modes in the Suddenly Created Weakly Nonlinear Magnetized Plasma. Transversal Propagation

Abstract

The nonlinear transformation of the linearly polarized source electromagnetic wave into electron and electromagnetic plasma oscillations, stationary (rectified and space-varying) modes and traveling electron and electromagnetic plasma waves, due to a weak nonlinearity, has been analyzed by second order perturbation theory in a radio approximation. The efficiency of the excitation of electron longitudinal second-harmonic electric wave modes, with double wave number with respect to the wave number modes obtained in the linear transformation, have been studied for different values of source wave frequency and taking electron cyclotron frequency as a parameter.