Abstract
Plasmas created by laser light interacting with metals are of great interest regarding numerous fields, e.g., medical laser applications, spacecraft propulsion or material processing. The process of laser-solid interaction is examined by atomistic Molecular Dynamics (MD) simulations for a detailed description of the creation of lattice ions and their removal from the target surface 1. In order to investigate the expansion of the plasma plume for larger spatial and temporal dimensions, the MD results are used as initial conditions for Particle-In-Cell (PIC) simulations, where particle collisions are incorporated using the Direct Simulation Monte Carlo (DSMC) method, which considers chemical reactions, e.g., impact ionization and recombination processes. These combined methods 2 offer an elaborate simulation of the expansion characteristics, which are crucial for subsequent laser pulses interacting with the expanding plasma plume.
Published Version
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