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Proceedings Paper

Antireflection Coatings For Germanium Without Zinc
Author(s): Ronald R. Willey
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Paper Abstract

We describe the concept, limitations, design, and application of a broadband antireflection coating for germanium which does not use zinc sulfide or zinc selenide. These materials have some undesirable working properties in production and it can be shown that their index of refraction limits the spectral performance which can be achieved. A design using only germanium and thorium fluoride can meet a broad range of requirements when stress and environmental durability are kept under control.

Paper Details

Date Published: 30 June 1989
PDF: 7 pages
Proc. SPIE 1050, Infrared Systems and Components III, (30 June 1989); doi: 10.1117/12.951447
Show Author Affiliations
Ronald R. Willey, Opto Mechanik, Inc. (United States)

Published in SPIE Proceedings Vol. 1050:
Infrared Systems and Components III
Robert L. Caswell, Editor(s)

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