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Title: Glancing-angle-deposited magnesium oxide films for high-fluence applications

Journal Article · · Optical Materials Express
DOI:https://doi.org/10.1364/OME.6.002291· OSTI ID:1264254

Here, Birefringent magnesium oxide thin films are formed by glancing angle deposition to perform as quarter-wave plates at a wavelength of 351 nm. These films are being developed to fabricate a large aperture distributed-polarization rotator for use in vacuum, with an ultimate laser-damage–threshold goal of up to 12 J/cm2 for a 5-ns flat-in-time pulse. The laser-damage threshold, ease of deposition, and optical film properties are evaluated. While the measured large-area laser-damage threshold is limited to ~4 J/cm2 in vacuum, initial results based on small-spot testing in air (>20 J/cm2) suggest MgO may be suitable with further process development.

Research Organization:
Univ. of Rochester, NY (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
NA0001944
OSTI ID:
1264254
Journal Information:
Optical Materials Express, Vol. 6, Issue 7; ISSN 2159-3930
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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