Inverse bremsstrahlung heating rate in atomic clusters irradiated by femtosecond laser pulses

摘要: In the interaction of atomic clusters with femtosecond laser pulses, nanoplasmas high density and temperature are created. The heating is mainly determined by inverse bremsstrahlung (IB) due to electron-ion collisions. many approaches for calculation IB rate such as Born approximation, large-angle scattering events underestimated. However, rescattering an electron on same ion play important role because they increase amount energy exchanged between electrons field. noble gas plasmas, often considered take place point-like particles. For typical studied in experiments, one advised into account not only screening surrounding plasma medium but also inner structure ions what can be accomplished use appropriate model potentials. present paper, calculated from classical simulation individual trajectories. Results presented xenon argon different degree ionization. Especially higher energies, consideration ionic increases compared however, overestimates this effect.