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Optical Engineering

Comparison of defects responsible for nanosecond laser-induced damage and ablation in common high index optical coatings
Author(s): Yejia Xu; Mohammed R. Abdulameer; Luke A. Emmert; Travis Day; Dinesh Patel; Carmen S. Menoni; Wolfgang Rudolph
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Paper 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.

Paper Details

Date Published: 12 October 2016
PDF: 6 pages
Opt. Eng. 56(1) 011019 doi: 10.1117/1.OE.56.1.011019
Published in: Optical Engineering Volume 56, Issue 1
Show Author Affiliations
Yejia Xu, The Univ. of New Mexico (United States)
Mohammed R. Abdulameer, Univ. of Baghdad (Iraq)
Luke A. Emmert, The Univ. of New Mexico (United States)
Travis Day, Colorado State Univ. (United States)
Dinesh Patel, Colorado State Univ. (United States)
Carmen S. Menoni, Colorado State Univ. (United States)
Wolfgang Rudolph, The Univ. of New Mexico (United States)

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