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Proceedings Paper

Long-wavelength infrared transmitting glasses: new ternary sulfide compositions
Author(s): Celia I. Merzbacher; Barry B. Harbison; E. A. Bolden; Ishwar D. Aggarwal
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Paper Abstract

Compositions in the MS-In2S3 and MS-Y2S3 systems (M equals Ca or Sr) have been investigated as potential long-wavelength infrared transmitting materials with possible glass-formability. Previous studies of CaY2S4 and SrY2S4 single crystals show that these phases have intrinsic infrared cut-offs at longer wavelengths than ZnS, however phases in these systems often exhibit poor crystallinity. Preliminary results indicate that these materials are significantly harder than ZnS, however, they are extremely refractory and therefore difficult to melt by traditional methods.

Paper Details

Date Published: 6 December 1993
PDF: 8 pages
Proc. SPIE 2018, Passive Materials for Optical Elements II, (6 December 1993); doi: 10.1117/12.165239
Show Author Affiliations
Celia I. Merzbacher, Naval Research Lab. (United States)
Barry B. Harbison, Naval Research Lab. (United States)
E. A. Bolden, Univ. Research Foundation (United States)
Ishwar D. Aggarwal, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 2018:
Passive Materials for Optical Elements II
Gary W. Wilkerson, Editor(s)

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