Deep-hole drilling in Fe by ultrashort laser pulses: molecular dynamics simulation study

Nikolay N. Nedialkov; Semra E. Imamova; Peter A. Atanasov; Peter Berger; Friedrich Dausinger

doi:10.1117/12.611032

23 March 2005 Deep-hole drilling in Fe by ultrashort laser pulses: molecular dynamics simulation study

Nikolay N. Nedialkov, Semra E. Imamova, Peter A. Atanasov, Peter Berger, Friedrich Dausinger

Author Affiliations +

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611032
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

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.

Citation Download Citation

Nikolay N. Nedialkov, Semra E. Imamova, Peter A. Atanasov, Peter Berger, and Friedrich Dausinger "Deep-hole drilling in Fe by ultrashort laser pulses: molecular dynamics simulation study", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611032

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