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Proceedings Paper

Theoretical modeling of the laser-solid-plasma interaction during UV laser ablation of metallic targets
Author(s): Salvatore Amoruso
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Paper Abstract

A model of laser-solid-plasma interaction taking into account vapor ionization and absorption mechanisms and laser induced plasma kinetics was developed. The laser-solid interaction has been modeled by using a thermal approach, and inverse bremsstrahlung and direct photo-ionization from excited neutrals have been considered for the absorption of the laser light. The model shows that the plasma parameters, which are increasing function of the fluence at moderate laser intensities, approach a plateau regime at high laser fluences. Model provisions show a quite good agreement with the experimental findings suggesting that laser-plasma interaction processes and plasma kinetics are of great importance in nanosecond laser ablation of metallic targets for power densities of the order of approximately 109 Wcm2.

Paper Details

Date Published: 25 February 2000
PDF: 6 pages
Proc. SPIE 4070, ALT '99 International Conference on Advanced Laser Technologies, (25 February 2000); doi: 10.1117/12.378162
Show Author Affiliations
Salvatore Amoruso, INFM and Univ. degli Studi della Basilicata (Italy)

Published in SPIE Proceedings Vol. 4070:
ALT '99 International Conference on Advanced Laser Technologies
Vladimir I. Pustovoy; Vitali I. Konov, Editor(s)

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