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

Yejia Xu; Mohammed R. Abdulameer; Luke A. Emmert; Travis Day; Dinesh Patel; Carmen S. Menoni; Wolfgang Rudolph

doi:10.1117/1.OE.56.1.011019

12 October 2016 Comparison of defects responsible for nanosecond laser-induced damage and ablation in common high index optical coatings

Yejia Xu, Mohammed R. Abdulameer, Luke A. Emmert, Travis Day, Dinesh Patel, Carmen S. Menoni, Wolfgang Rudolph

Author Affiliations +

Optical Engineering, Vol. 56, Issue 1, 011019 (October 2016). https://doi.org/10.1117/1.OE.56.1.011019

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.

Citation Download Citation

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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