Refractory sulfides as IR window materials

William B. White

doi:10.1117/12.22484

1 October 1990 Refractory sulfides as IR window materials

William B. White

Proceedings Volume 1326, Window and Dome Technologies and Materials II; (1990) https://doi.org/10.1117/12.22484
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

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.

Citation Download Citation

William B. White "Refractory sulfides as IR window materials", Proc. SPIE 1326, Window and Dome Technologies and Materials II, (1 October 1990); https://doi.org/10.1117/12.22484

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