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Model and computer simulation of nanosecond laser material ablation

Model and computer simulation of nanosecond laser material ablation

Authors :
Valerio Romano
H.P. Weber
G. Dumitru
Source :
Scopus-Elsevier
Publication Year :
2004
Publisher :
Springer Science and Business Media LLC, 2004.

Abstract

A computer model to simulate the evolution of parameters describing laser ablation processes was developed. The absorbed laser energy, the heat diffusion, the phase transformations and the shielding effect of the ablated material were taken into account. The temporal development of the ablated volume, pore depth and extension of the melt zone were calculated for single pulses of 500, 100, 20, 5 and 1 ns. Simulations were performed for pulse energies of 50 μJ and spot diameters of 10 μm. From temporal evolution curves of the ablated volumes, the stoppage of the ablation process was evidenced before the end of the processing pulse. Comments with respect to optimal pulse duration (in the ns regime) are also formulated.

Details

ISSN :
14320630 and 09478396
Volume :
79
Database :
OpenAIRE
Journal :
Applied Physics A
Accession number :
edsair.doi.dedup.....4de433acd361b8f3fa319b0eae232c73
Full Text :
https://doi.org/10.1007/s00339-004-2723-x