The microstructure and LIDT of Nb2O5 and Ta2O5 optical coatings

G. Abromavicius; R. Buzelis; R. Drazdys; A. Melninkaitis; D. Miksys; V. Sirutkaitis; A. Skrebutenas; R. Juskenas; A. Selskis

doi:10.1117/12.696259

15 January 2007 The microstructure and LIDT of Nb₂O₅ and Ta₂O₅ optical coatings

G. Abromavicius, R. Buzelis, R. Drazdys, A. Melninkaitis, D. Miksys, V. Sirutkaitis, A. Skrebutenas, R. Juskenas, A. Selskis

Author Affiliations +

Proceedings Volume 6403, Laser-Induced Damage in Optical Materials: 2006; 640315 (2007) https://doi.org/10.1117/12.696259
Event: Boulder Damage Symposium XXXVIII: Annual Symposium on Optical Materials for High Power Lasers, 2006, Boulder, Colorado, United States

Abstract

High power laser systems are one of the most rapidly growing areas in the development of laser technology. This also leads towards higher requirements for environmental stability of optical components and their resistance to laser radiation. There are some reports showing that porous dielectric coatings are more resistant to intense laser radiation, however they have smaller environmental stability than denser coatings, which are more sensitive to laser radiation. The influence of important technological parameters (deposition rate, substrate temperature, energy of ions) on optical and microstructural properties of high reflection dielectric coatings based on Nb₂O₅/SiO₂, and Ta₂O₅/SiO₂ in VIS spectral region is presented. Furthermore the LIDT measurements using repetitive nanosecond laser pulses of Nb₂O₅/SiO₂ and Ta₂O₅/SiO₂ high reflecting optical coatings based on ISO 11254-2 standard are presented.

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G. Abromavicius, R. Buzelis, R. Drazdys, A. Melninkaitis, D. Miksys, V. Sirutkaitis, A. Skrebutenas, R. Juskenas, and A. Selskis "The microstructure and LIDT of Nb₂O₅ and Ta₂O₅ optical coatings", Proc. SPIE 6403, Laser-Induced Damage in Optical Materials: 2006, 640315 (15 January 2007); https://doi.org/10.1117/12.696259

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