Analytical study of the hydrodynamics of similarity flows from thin-foil laser plasmas

摘要

The hydrodynamic expansion of plasmas produced by laser beams focused on thin-foil tar gets is studied using a self-similar approach. The model is useful for studying long-scale-length plasmas, produced by uniform laser irradiation, which become fully underdense during the laser pulse. Bn essentially qualitative analysis of the hydrodynamics system in Cartesian geometry is given. In particular. a useful expression is obtained by integration of the thermal energy equation. [References: 7]