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Proceedings Paper

Calcium Lanthanum Sulfide As A Long Wavelength IR Material
Author(s): Richard L Gentilman; Melissa B Dekosky; Thomas Y Wong; Randal W Tustison; Marian E Hills
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Paper Abstract

Calcium lanthanum sulfide (CLS) is under development as a long wavelength infrared (LWIR) window/dome. A coating has been demonstrated to protect CLS from the effects of high humidity and to increase its resistance to rain drop impact damage. Coated CLS exhibits better impact damage resistance than coated ZnS. Processing studies have focussed on improving the optical quality and fracture strength of CLS. Recent work has also concentrated on materials with a molar composition of 90 La2S3 : 10 CaS.

Paper Details

Date Published: 18 July 1988
PDF: 8 pages
Proc. SPIE 0929, Infrared Optical Materials IV, (18 July 1988); doi: 10.1117/12.945852
Show Author Affiliations
Richard L Gentilman, Raytheon Company (United States)
Melissa B Dekosky, Raytheon Company (United States)
Thomas Y Wong, Raytheon Company (United States)
Randal W Tustison, Raytheon Company (United States)
Marian E Hills, Naval Weapons Center (United States)


Published in SPIE Proceedings Vol. 0929:
Infrared Optical Materials IV
Solomon Musikant, Editor(s)

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