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Proceedings Paper

Polycrystalline MgA1[sub]2[/sub]O[sub]4[/sub] Spinel A Broad Band Optical Material For Offensive Environments
Author(s): K. E. Green; J. L. Hastert; D. W. Roy
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Paper Abstract

Today's optical systems are sometimes exposed to environments in which traditional optical materials rapidly degrade. In contrast, polycrystalline MgA1204 Spinel, transparent from three hundred nanometers to five and a half microns, with a unique combination of optical and physical properties provides a superior alternative in respect to stability to solar radiation, rain and particle erosion, high temperatures, and humidity, and is resistant to attack in strong acid and alkali solutions. Comparative data prior to and following exposure to a variety of environments will be reported. In addition, current and projected size and shape capability will be reviewed.

Paper Details

Date Published: 11 September 1989
PDF: 7 pages
Proc. SPIE 1112, Window and Dome Technologies and Materials, (11 September 1989); doi: 10.1117/12.960757
Show Author Affiliations
K. E. Green, Coors Optical Systems Co. (United States)
J. L. Hastert, Coors Optical Systems Co. (United States)
D. W. Roy, Coors Optical Systems Co. (United States)

Published in SPIE Proceedings Vol. 1112:
Window and Dome Technologies and Materials
Paul Klocek, Editor(s)

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