7 February 2006 Development of 2-μm laser damage test facility
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An automatic test facility has been developed with an infrared nanosecond laser, based on frequency mixing of YAG and Dye laser, tunable in the range 2 to 4.5 microns, in order to study the laser-induced damage mechanisms in Infrared optical components. Determination of an accurate LIDT is obtained thanks to a perfect knowledge of experimental characteristics (spatial and temporal beam profile, damage detection mode, energy measurement). Metrology and procedures are detailed and some damage probability curves obtained for bare infrared substrates (ZnSe) are presented. Particularly, we compare surface behaviour for different procedures of test. Damage probability curves are then interpreted in terms of density and damage threshold of precursor centers thanks to a statistical model.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hélène Krol, Hélène Krol, Laurent Gallais, Laurent Gallais, Jean-Yves Natoli, Jean-Yves Natoli, Catherine Grèzes-Besset, Catherine Grèzes-Besset, Mireille Commandré, Mireille Commandré, } "Development of 2-μm laser damage test facility", Proc. SPIE 5991, Laser-Induced Damage in Optical Materials: 2005, 599129 (7 February 2006); doi: 10.1117/12.638736; https://doi.org/10.1117/12.638736


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