Influence of pre-treatment conditions on the resistivity of fluoride multilayers

H. Blaschke; D. Ristau; W. Riggers; S. Schippel

doi:10.1117/12.804463

30 December 2008 Influence of pre-treatment conditions on the resistivity of fluoride multilayers

H. Blaschke, D. Ristau, W. Riggers, S. Schippel

Proceedings Volume 7132, Laser-Induced Damage in Optical Materials: 2008; 71320I (2008) https://doi.org/10.1117/12.804463
Event: Boulder Damage Symposium XL Annual Symposium on Optical Materials for High Power Lasers, 2008, Boulder, Colorado, United States

Abstract

With respect to laser-based applications below 200 nm, fluoride materials used as layer and substrate materials are most prominent in optical components for beam shaping, steering and focussing. High band gaps and comparatively low extinction coefficients are the outstanding parameters of these components. However, fluoride coatings are exceedingly sensitive concerning surface contamination, handling, ambient atmosphere, humidity and total energy load. A set of fluoride layer stacks from different coating plants has been investigated by spectroscopic methods measuring the optical performance, laser calorimetry detecting the absorptive losses and LIDT testing the radiation resistivity of the specimens. Another set of samples was applied to an UV treatment system in nitrogen atmosphere before testing the optical performance by the procedures listed above.

Citation Download Citation

H. Blaschke, D. Ristau, W. Riggers, and S. Schippel "Influence of pre-treatment conditions on the resistivity of fluoride multilayers", Proc. SPIE 7132, Laser-Induced Damage in Optical Materials: 2008, 71320I (30 December 2008); https://doi.org/10.1117/12.804463

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