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Proceedings Paper

Shockwave detection: an efficient way to determine multiple-pulse damage thresholds
Author(s): S. Petzoldt
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Paper Abstract

The detection of damage associated shock pulses via the deflection of a probe laser beam is exploited to study multiple-shot damage thresholds in CaF2, PMMA, copper, and aluminium. We find a reduction of threshold intensity as compared to single-shot con- ditions. The experimental results point towards deviations from the previously postu- lated fluence dependence FN = FINS-1 [see Ref.4]. They are, however, compatible with a simple model relating the threshold reduction to defect accumulation via non-linear energy absorption.

Paper Details

Date Published: 1 November 1990
PDF: 7 pages
Proc. SPIE 1438, Laser-Induced Damage in Optical Materials 1989, 14380H (1 November 1990); doi: 10.1117/12.2294426
Show Author Affiliations
S. Petzoldt, Freie Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 1438:
Laser-Induced Damage in Optical Materials 1989
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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