Amplification of Electromagnetic Pulses by Photoionized Plasma

Resumo

We consider the conditions of aperiodic instability appearance in photoionized plasma produced at the impact of a pulse of circularly polarized radiation on the gas. We show the possibility of electromagnetic radiation amplification under reflection by photoionized plasma. We give a comparative analysis of amplification patterns taking place in hydrodynamic and kinetic description of the photoelectrons dynamics.