Electromagnetically driven solitons in inhomogeneous overdense plasma

In the framework of nonlinear Schrodinger equation (NSE), the dynamics of s oliton excitation by an incident electromagnetic wave in an inhomogeneous o verdense plasma is investigated. The periodic and chaotic regimes of the ex citation are obtained, the thresholds for periodic and chaotic regimes are found. It is shown that the regimes depend on the unique parameter, which i s determined by the scale of plasma inhomogeneity and the amplitude of the incident wave. Dynamic nonlinear effects connected with the soliton excitat ion: spectrum broadening of the reflected wave and local fields, the expans ion of the excitation region deep into the overdense plasma, "super-reflect ion" and "after-effect" art: studied. (C) 2001 Elsevier Science B.V. All ri ghts reserved.