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Express-diagnostics of a crater growth on laser plasma materials processing

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3 Author(s)
Ivanov, A.Yu. ; Grodno State Univ., Grodno, Belarus ; Nedolugov, V.Y. ; Vasiliev, S.V.

Acoustic emission of a zone of the destruction formed during influence of pulse laser radiation on a surface of metal is considered. Dependence of the time form of acoustic fluctuations on parameters of an irradiated material and the law of increase in depth of a crater was estimated. It is revealed, that at action on a surface of the copper sample of a laser impulse duration ~20 μc time of growth of a zone of destruction makes approximately 40 MKC, that will well be coordinated with time of existence of plasma formation at a surface of the target exposed to laser-plasma processing (~50 μc).

Published in:

Laser and Fiber-Optical Networks Modeling (LFNM), 2011 11th International Conference on

Date of Conference:

5-9 Sept. 2011