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Proceedings Paper

Damage fluence at 1054 nm and 351 nm of coatings made with hafnium oxide evaporated from metallic hafnium
Author(s): Douglas J. Smith; J. F. Anzellotti; Ansgar W. Schmid; Semyon Papernov; Z. Roman Chrzan; Steven J. Van Kerkhove
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Paper Abstract

A polarizing beamsplitter used for the OMEGA Upgrade, was produced using the hafnia/silica combination. These coatings have stringent optical requirements, are placed in the stages of the laser with the highest fluence at 1054 nm, and are required to have a low net stress to produce low wavefront distortion. Hafnia/silica coatings are also more stable than other film combinations such as tantala/silica. Hafnia/silica films were investigated for other applications. A triple wavelength antireflection coating was developed for calorimeter absorption glass. The metal-converted hafnia is also used on selected transport mirrors used at 351 nm and angles of incidence up to 45 degrees. Damage test results for 1054 nm, 1 ns, and 351 nm, 0.7 ns will be presented.

Paper Details

Date Published: 14 July 1995
PDF: 2 pages
Proc. SPIE 2428, Laser-Induced Damage in Optical Materials: 1994, (14 July 1995); doi: 10.1117/12.213715
Show Author Affiliations
Douglas J. Smith, Univ. of Rochester (United States)
J. F. Anzellotti, Univ. of Rochester (United States)
Ansgar W. Schmid, Univ. of Rochester (United States)
Semyon Papernov, Univ. of Rochester (United States)
Z. Roman Chrzan, Univ. of Rochester (United States)
Steven J. Van Kerkhove, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 2428:
Laser-Induced Damage in Optical Materials: 1994
Harold E. Bennett; Arthur H. Guenther; Mark R. Kozlowski; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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