Long-wavelength infrared transmitting glasses: new ternary sulfide compositions

Celia I. Merzbacher; Barry B. Harbison; E. A. Bolden; Ishwar D. Aggarwal

doi:10.1117/12.165239

6 December 1993 Long-wavelength infrared transmitting glasses: new ternary sulfide compositions

Celia I. Merzbacher, Barry B. Harbison, E. A. Bolden, Ishwar D. Aggarwal

Proceedings Volume 2018, Passive Materials for Optical Elements II; (1993) https://doi.org/10.1117/12.165239
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

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.

Citation Download Citation

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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