Paper
6 December 1993 Long-wavelength infrared transmitting glasses: new ternary sulfide compositions
Celia I. Merzbacher, Barry B. Harbison, E. A. Bolden, Ishwar D. Aggarwal
Author Affiliations +
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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Celia I. Merzbacher, Barry B. Harbison, E. A. Bolden, and Ishwar D. Aggarwal "Long-wavelength infrared transmitting glasses: new ternary sulfide compositions", Proc. SPIE 2018, Passive Materials for Optical Elements II, (6 December 1993); https://doi.org/10.1117/12.165239
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KEYWORDS
Crystals

Long wavelength infrared

Glasses

Optical components

X-ray diffraction

X-rays

Zinc

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