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Proceedings Paper

Preparation of dielectric highly reflective (HR) mirrors from colloidal oxide suspensions containing organic polymer binders
Author(s): Ian M. Thomas
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Paper Abstract

Colloidal suspensions of oxides have been used to prepare dielectric HR mirrors, specifically for high power fusion laser applications, on substrates up to 38 cm square using a meniscus coater. These coatings consist of porous quarterwave layers of alternating high and low refractive index oxides. Silica was used exclusively as the low index oxide and AlOOH, ZrO2 or HfO2 as the high index material. Coatings were weak because of low particle-to- particle adhesion. The use of organic polymer binders in the high index component in particular, was found to increase strength thereby improving the laser damage threshold and also reducing the number of layers required for 99% reflection due to increase in the refractive index.

Paper Details

Date Published: 13 October 1994
PDF: 6 pages
Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); doi: 10.1117/12.188987
Show Author Affiliations
Ian M. Thomas, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 2288:
Sol-Gel Optics III
John D. Mackenzie, Editor(s)

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