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Proceedings Paper

Deep-hole drilling in Fe by ultrashort laser pulses: molecular dynamics simulation study
Author(s): Nikolay N. Nedialkov; Semra E. Imamova; Peter A. Atanasov; Peter Berger; Friedrich Dausinger
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Paper Abstract

Some basic features of ultrashort laser drilling of deep holes in Fe are investigated using molecular dynamics simulation model. The process is simulated for laser pulse duration of 0.1 ps at aspect ratio of the hole (hole depth/hole width) higher than 1. The interaction of the ablated material with the hole's wall affects its shape. The number of re-deposited, reflected, and secondary ejected particles from the walls is estimated as a function of the laser fluence. Significant secondary ejection of material from the walls is observed at fluences above 5 J/cm2.

Paper Details

Date Published: 23 March 2005
PDF: 4 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611032
Show Author Affiliations
Nikolay N. Nedialkov, Institute of Electronics (Bulgaria)
Semra E. Imamova, Institute of Electronics (Bulgaria)
Peter A. Atanasov, Institute of Electronics (Bulgaria)
Peter Berger, Univ. Stuttgart (Germany)
Friedrich Dausinger, Univ. Stuttgart (Germany)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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