High electrostatic fields at ponderomotive laser driving of plasmas by nonlinear forces

Abstract

The very short time step numerical two-fluid computation of laser-plasma interaction including complete nonlinear optical constants and the nonlinear (ponderomotive) force results in detailed information on plasma oscillations and damping and in the generation of electrostatic fields of 10 8 V/cm for neodymium glass laser pulses of 10 16 W/cm 2 intensity. The decoupling of interaction after caviton generation occurs as in preceding one-fluid calculations, after having permitted sufficient nonlinear force pushing of shells for fusion.