NEW HIGH TEMPERATURE INFRARED TRANSMITTING GLASSES.
Abstract
For more than a year and a half Texas Instruments has been evaluating three-component (ternary) non-oxide glasses made from elements from groups IVA, VA, and VIA as possible high temperature (500 C) infrared window materials. Of particular importance are materials that can be used to take advantage of the atmospheric windows at 3 to 5 and 8 to 14 microns. Systems evaluated in the last six months are the Ge-PS, Ge-P-Se, and Ge-As-Te. The Ge-P-S and Ge-PSe glasses are quite similar and show promise as moderate temperature window materials for the 3 to 5 micron application. The Ge-As-Te glasses are of excellent optical quality (no appreciable absorption from 2 to 8 microns) but have low softening points. Blends of individual glasses from different glass systems were prepared in an attempt to improve optical properties. The attempts were unsuccessful and indicate blending should be carried out one element at a time in small incremental amounts. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1963
- Accession Number
- AD0424549
Entities
People
- A. Ray Hilton
- Charlie E. Jones
- Maurice J. Brau
Organizations
- Texas Instruments