Non-equilibrium modeling of UV laser induced plasma on a metallic target in the presence of doubly charged species

摘要

This work investigates the impact of the presence of doubly ionized species in a metallic plasma induced by an ultraviolet laser, while taking account the non equilibrium between electrons and heavy species. We developed a 1D hydrodynamic model to describe the behavior of the laser induced plume, including the thermal non-equilibrium between electrons and heavy particles. Incorporating formation of doubly charged ions in such an approach has not been considered previously. This paper starts by a short introduction followed by a presentation of our model, computational code and the most significant results. Finally we present the main conclusions drawn from this investigation and some future perspectives.