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Proceedings Paper

Ablated nano-particles residing in air: characterization, elimination, and role in pulsed microdrilling
Author(s): S. M. Klimentov; V. I. Konov; P. A. Pivovarov; S. V. Garnov; T. V. Kononenko; F. Dausinger
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Paper Abstract

Laser ablation of materials in air is able to introduce long living modification of the gas environment in vicinity of the exposed area. Such a modification implies formation and residence of small particles of the material and of ablation products. If the material is exposed to multipulse laser action, which is normally the case for micro-mashining, ignition of laser plasma at such particles is able to create significant screening of incident radiation, influencing this way formation rates and morphology of ablated structures. Effect of this low-threshold air breakdown is especially pronounced in long drilled channels, where convection is poor.

Paper Details

Date Published: 25 April 2007
PDF: 10 pages
Proc. SPIE 6606, Advanced Laser Technologies 2006, 66060H (25 April 2007); doi: 10.1117/12.729582
Show Author Affiliations
S. M. Klimentov, Prokhorov General Physics Institute (Russia)
V. I. Konov, Prokhorov General Physics Institute (Russia)
P. A. Pivovarov, Prokhorov General Physics Institute (Russia)
S. V. Garnov, Prokhorov General Physics Institute (Russia)
T. V. Kononenko, Prokhorov General Physics Institute (Russia)
F. Dausinger, Institut für Strahlwerkzeuge (Germany)

Published in SPIE Proceedings Vol. 6606:
Advanced Laser Technologies 2006
Dan C. Dumitras; Maria Dinescu; Vitally I. Konov, Editor(s)

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