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12 October 2016 Comparison of defects responsible for nanosecond laser-induced damage and ablation in common high index optical coatings
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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.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2016/$25.00 © 2016 SPIE
Yejia Xu, Mohammed R. Abdulameer, Luke A. Emmert, Travis Day, Dinesh Patel, Carmen S. Menoni, and Wolfgang Rudolph "Comparison of defects responsible for nanosecond laser-induced damage and ablation in common high index optical coatings," Optical Engineering 56(1), 011019 (12 October 2016). https://doi.org/10.1117/1.OE.56.1.011019
Published: 12 October 2016
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