Measurement of relative damage thresholds at total internal reflection surfaces

Jonathan W. Arenberg; David W. Mordaunt

doi:10.1117/12.461700

9 April 2002 Measurement of relative damage thresholds at total internal reflection surfaces

Proceedings Volume 4679, Laser-Induced Damage in Optical Materials: 2001; (2002) https://doi.org/10.1117/12.461700
Event: Boulder Damage, 2001, Boulder, CO, United States

Abstract

This paper presents the results of a recent experiment to measure the relative laser induced damage thresholds on total internal reflection (TIR) surfaces. The TIR surfaces were realized by testing the reflective surface of an undoped YAG prism at 1.06 micrometers and 12-ns pulse length. Several prisms were tested and the data from each identically processed surface combined to provide a statistically significant sample set. The lowest fluence at which damage was observed using post exposure microscopy was taken as the damage threshold for each polarization. The experimentally observed ratio of the S and P polarization damage thresholds at the TIR surface of 0.584+/- 0.081. This ratio is consistent with a mechanism of damage which is proportional to the third power of the intensity.

Citation Download Citation

Jonathan W. Arenberg and David W. Mordaunt "Measurement of relative damage thresholds at total internal reflection surfaces", Proc. SPIE 4679, Laser-Induced Damage in Optical Materials: 2001, (9 April 2002); https://doi.org/10.1117/12.461700

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