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Laser damage resistance of hafnia thin films deposited by electron beam deposition, reactive low voltage ion plating, and dual ion beam sputtering

Journal Article · · Applied Optics
DOI:https://doi.org/10.1364/AO.47.00C107· OSTI ID:21120730
A comparative study is made of the laser damage resistance of hafnia coatings deposited on fused silica substrates with different technologies: electron beam deposition (from Hf or HfO2 starting material), reactive low voltage ion plating, and dual ion beam sputtering.The laser damage thresholds of these coatings are determined at 1064 and 355 nm using a nanosecond pulsed YAG laser and a one-on-one test procedure. The results are associated with a complete characterization of the samples: refractive index n measured by spectrophotometry, extinction coefficient k measured by photothermal deflection, and roughness measured by atomic force microscopy.
OSTI ID:
21120730
Journal Information:
Applied Optics, Journal Name: Applied Optics Journal Issue: 13 Vol. 47; ISSN 0003-6935; ISSN APOPAI
Country of Publication:
United States
Language:
English