Electromagnetically driven solitons in inhomogeneous overdense plasma

In the framework of nonlinear Schrödinger equation (NSE), the dynamics of soliton excitation by an incident electromagnetic wave in an inhomogeneous overdense plasma is investigated. The periodic and chaotic regimes of the excitation are obtained, the thresholds for periodic and chaotic regimes are found. It is shown that the regimes depend on the unique parameter, which is determined by the scale of plasma inhomogeneity and the amplitude of the incident wave. Dynamic nonlinear effects connected with the soliton excitation: spectrum broadening of the reflected wave and local fields, the expansion of the excitation region deep into the overdense plasma, “super-reflection” and “after-effect” are studied.