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Single-layer TiO/sub 2/ and multilayer TiO/sub 2/--SiO/sub 2/ optical coatings prepared from colloidal suspensions

Journal Article · · Appl. Opt.; (United States)
DOI:https://doi.org/10.1364/AO.26.004688· OSTI ID:5923711
Single-layer coatings on fused silica substrates have been prepared from aqueous colloidal suspensions of titania at room temperature. These coatings were porous and had a refractive index of 1.9. Multilayer high reflectivity dielectric coatings were also prepared by laying down quarterwave thick alternating coats at room temperature of this titania with silica, prepared from a colloidal suspension of silica. Single-shot laser damage threshold measurements at 1064-nm wavelength with a pulse length of 1 ns were carried out for both the titania and titania--silica systems. These averaged 7.5 and 6.2 J/cm/sup 2/, respectively.
Research Organization:
Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
5923711
Journal Information:
Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 26:21; ISSN APOPA
Country of Publication:
United States
Language:
English