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Proceedings Paper

Effect of high repetition rate on pulsed laser ablation in gas environment
Author(s): P. A. Pivovarov; S. M. Klimentov; V. I. Konov; D. Breitling; F. Dausinger
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Paper Abstract

Pulsed laser drilling in steel was explored in a wide range of repetition rates (up to 200 kHz) at variable pressure of the ambient air. A critical repetition rate was established, exceeding of which drastically increased productivity of ablative drilling. The phenomenon was attributed to formation of a long-living domain (> 100 μs) with hot rarefied atmosphere in the vicinity of the ablated spot or inside the drilled channel. This rarefication was shown to reduce the plasma screening effect, which allows creation of quasi-vacuum conditions for laser ablative technology avoiding vacuum-pumped facilities.

Paper Details

Date Published: 26 April 2006
PDF: 6 pages
Proc. SPIE 6161, International Conference on Lasers, Applications, and Technologies 2005: Laser-Assisted Micro- and Nanotechnologies, 616109 (26 April 2006); doi: 10.1117/12.675016
Show Author Affiliations
P. A. Pivovarov, General Physics Institute (Russia)
S. M. Klimentov, General Physics Institute (Russia)
V. I. Konov, General Physics Institute (Russia)
D. Breitling, Institut für Strahlwerkzeuge (Germany)
F. Dausinger, Institut für Strahlwerkzeuge (Germany)


Published in SPIE Proceedings Vol. 6161:
International Conference on Lasers, Applications, and Technologies 2005: Laser-Assisted Micro- and Nanotechnologies
Vitaly I. Konov; Vladislav Ya. Panchenko; Koji Sugioka; Vadim P. Veiko, Editor(s)

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