INVESTIGATION OF LONG WAVELENGTH INFRARED GLASSES.
Abstract
Information on infrared transmitting glasses is presented. This information consists of composition-property data obtained on new glasses selected from the As-S-Se-Te field. Part I is essentially a property measurement section designed to determine selected optical, thermal and physical properties on 20 different glass compositions. Samples were selected from a collection of proprietary glasses developed from the As-S-Se-Te composition field. The glasses are in the process of being melted. Part II consists of developing new glass compositions having transmittance to beyond 16 microns. The best glasses from Part I are used as a basis with additions of other elements to obtain additional glasses with improved infrared transmission characteristics. A rapid method for preliminary evaluation of glass compositions was developed for evaluating a wide variety of composition changes in a short time. This method was utilized to examine numerous glasses comprised of As, Se, and Te with additions of Cu, Sb, Ag, and Bi. Results are given in terms of composition and extent of glass formation. A detailed description of the method is provided. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1962
- Accession Number
- AD0282239