Chalcogenide Glasses for High Energy Laser Application

Abstract

New compounding techniques were devised to prepare high purity TI no. 1173 (Ge28Sb12Se60) and TI no. 20 (Ge33As12Se55). The methods were based on the combination of the reactant purification and compounding steps. The goal of the program was to establish the absorption limit for the glasses and to lower the absorption at 10.6 micrometers. Glasses based on sulfur and selenium were carefully characterized to establish the interdependence between chemical composition and the magnitudes of physical parameters related to their use as infrared optical materials. The sulfur glasses selected for evaluation were from the Ge-Sb-S system. The physical properties of sulfur glasses were substantially better than those of the selenium glasses. Visible transmission was found for glasses containing 60 or more atomic percent sulfur. However, chalcogenide glasses do not appear promising as high energy CO2 laser window materials.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1974
Accession Number
AD0782036

Entities

People

  • A. R. Hilton
  • D. J. Hayes
  • M. D. Rechtin

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Glass Transition Temperature
  • Heat Energy
  • Heat Transfer
  • Infrared Optical Materials
  • Laser Applications
  • Long Wavelengths
  • Materials
  • Materials Science
  • Measurement
  • Optical Materials
  • Optical Properties
  • Physical Properties
  • Refractive Index
  • Thermal Conductivity
  • Transition Temperature
  • Visible Spectra

Fields of Study

  • Materials science

Readers

  • Analytical Chemistry
  • Optical Physics and Photonics.
  • Polymer Science and Engineering.

Technology Areas

  • Directed Energy