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Proceedings Paper

Scratch-resistant single-layer antireflective coating by a low-temperature sol-gel route
Author(s): Herve G. Floch; Philippe F. Belleville
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Paper Abstract

A novel quarterwave-thick narrow-bandwidth antireflective coating has been developed for both plastic and vitreous substrates by a sol-gel route. This coating has revealed pronounced scratch- and climatic-resistances under adverse conditions. The single-layer coating consists basically of a composite material made of silica as the discontinuous phase and of a polytetrafluoroethylene-derived (TeflonTM) organic polymer as the continuous phase. This leads to a fluorine-containing silica-based product so-called Fluosil-coating. The coating is applied by spin or dip from specific solutions at room temperature followed by a mild and short heat treatment. In addition to remarkable abrasion and environmental resistance properties, such coatings have displayed excellent laser-induced damage threshold levels surpassing uncoated substrates. We hope such a product might open new perspectives concerning household articles, architectural optical thin-films, ophthalmic uses and so on.

Paper Details

Date Published: 7 December 1992
PDF: 15 pages
Proc. SPIE 1758, Sol-Gel Optics II, (7 December 1992); doi: 10.1117/12.132008
Show Author Affiliations
Herve G. Floch, Commissariat a l'Energie Atomique (France)
Philippe F. Belleville, Commissariat a l'Energie Atomique (France)

Published in SPIE Proceedings Vol. 1758:
Sol-Gel Optics II
John D. Mackenzie, Editor(s)

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