Development of Gallium Arsenide for Infrared Windows.
Abstract
A program was initiated to scale-up from 6 by 4 by 0.5 inch to 6 by 12 by 0.5 inch, a GaAs gradient-freeze process for producing gallium arsenide infrared windows. A process was developed that permits the production of gallium arsenide at atmospheric pressure, using a helium vent system. GaAs plates up to 6 by 12 by 0.4 inch were produced by this technique. The atmospheric process also permits further scale-up because ampuls can be easily fabricated and do not require special sizes, shapes and thicknesses. The dn/dt of gallium arsenide was measured and reported. The transmittance of the plates produced was measured and reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1976
- Accession Number
- ADA037336
Entities
People
- Harold C. Hafner
- Maurice J. Brau
Organizations
- Texas Instruments