Damage fluence at 1054 nm and 351 nm of coatings made with hafnium oxide evaporated from metallic hafnium

Douglas J. Smith; J. F. Anzellotti; Ansgar W. Schmid; Semyon Papernov; Z. Roman Chrzan; Steven J. Van Kerkhove

doi:10.1117/12.213715

14 July 1995 Damage fluence at 1054 nm and 351 nm of coatings made with hafnium oxide evaporated from metallic hafnium

Douglas J. Smith, J. F. Anzellotti, Ansgar W. Schmid, Semyon Papernov, Z. Roman Chrzan, Steven J. Van Kerkhove

Proceedings Volume 2428, Laser-Induced Damage in Optical Materials: 1994; (1995) https://doi.org/10.1117/12.213715
Event: Laser-Induced Damage in Optical Materials: 1994, 1994, Boulder, CO, United States

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.

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Douglas J. Smith, J. F. Anzellotti, Ansgar W. Schmid, Semyon Papernov, Z. Roman Chrzan, and Steven J. Van Kerkhove "Damage fluence at 1054 nm and 351 nm of coatings made with hafnium oxide evaporated from metallic hafnium", Proc. SPIE 2428, Laser-Induced Damage in Optical Materials: 1994, (14 July 1995); https://doi.org/10.1117/12.213715

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