Shockwave detection: an efficient way to determine multiple-pulse damage thresholds

S. Petzoldt

doi:10.1117/12.2294426

1 November 1990 Shockwave detection: an efficient way to determine multiple-pulse damage thresholds

S. Petzoldt

Proceedings Volume 1438, Laser-Induced Damage in Optical Materials 1989; 14380H (1990) https://doi.org/10.1117/12.2294426
Event: Laser-Induced Damage in Optical Materials 1989, 1989, Boulder, CO, United States

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.

Citation Download Citation

S. Petzoldt "Shockwave detection: an efficient way to determine multiple-pulse damage thresholds", Proc. SPIE 1438, Laser-Induced Damage in Optical Materials 1989, 14380H (1 November 1990); https://doi.org/10.1117/12.2294426

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