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Proceedings Paper

Refractory sulfides as IR window materials
Author(s): William B. White
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Paper Abstract

The development of sulfide materials as infrared-transmitting optical ceramics is limited by intrinsic optical properties, thermomechanical properties, and considerations of chemical stability. Screening procedures with respect to band gap, electronic absorption, chemical stability, and refractory character reduced the set of all sulfides to about a dozen structural families. Systematic relationships were developed between crystal chemistry and phonon absorption edge, vibrational modes frequencies, and coefficient of thermal expansion which allow possible ranges of properties to be estimated. It is concluded that improved materials are possible but that radically improved new materials are unlikely.

Paper Details

Date Published: 1 October 1990
PDF: 13 pages
Proc. SPIE 1326, Window and Dome Technologies and Materials II, (1 October 1990); doi: 10.1117/12.22484
Show Author Affiliations
William B. White, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 1326:
Window and Dome Technologies and Materials II
Paul Klocek, Editor(s)

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