Special Section on Laser Damage III

Comparison of defects responsible for nanosecond laser-induced damage and ablation in common high index optical coatings

[+] Author Affiliations
Yejia Xu, Luke A. Emmert, Wolfgang Rudolph

University of New Mexico, Department of Physics and Astronomy, 1919 Lomas Boulevard Northeast, Albuquerque, New Mexico 87131, United States

Mohammed R. Abdulameer

University of Baghdad, Department of Physics, Jadiria, Baghdad 10071, Iraq

Travis Day, Dinesh Patel, Carmen S. Menoni

Colorado State University, Department of Electrical and Computer Engineering, 1320 Campus Delivery, Fort Collins, Colorado 80523, United States

Opt. Eng. 56(1), 011019 (Oct 12, 2016). doi:10.1117/1.OE.56.1.011019
History: Received May 25, 2016; Accepted September 14, 2016
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Abstract.  Spatiotemporally resolved optical laser-induced damage is an experimental technique used to study nanosecond laser damage and initiation of ablation in dielectric metal-oxide films used for optical coatings. It measures the fluence (intensity) at the initiation of damage during a single laser pulse. The technique was applied to coatings of HfO2, Sc2O3, and Ta2O5, which were prepared by ion-beam sputtering, and HfO2 which was prepared by electron-beam evaporation. Using the data obtained, we were able to retrieve the defect density distributions of these films without a priori assumptions about their functional form.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Yejia Xu ; Mohammed R. Abdulameer ; Luke A. Emmert ; Travis Day ; Dinesh Patel, et al.
"Comparison of defects responsible for nanosecond laser-induced damage and ablation in common high index optical coatings", Opt. Eng. 56(1), 011019 (Oct 12, 2016). ; http://dx.doi.org/10.1117/1.OE.56.1.011019


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