FAR-INFRARED SPECTRA OF CRYSTALS AND SOLIDS IN A LARGE RANGE OF TEMPERATURES.

Abstract

Far-Infrared absorption spectra were obtained of thallium halides, copper halides, rare earth fluorides, dysprosium gallate, B2O3, quartz. Reflexion spectra of ZnTe, CdTe, ZnSe, Thallium halides and Copper halides were obtained at room temperature, liquid nitrogen, liquid hydrogen and liquid helium temperature from 40 to 900 microns. The different behaviour of crystals and glasses in the farinfrared at low temperature and the evidence of single phonon processes in glasses and ionic crystals is considered. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 15, 1965
Accession Number
AD0622091

Entities

People

  • A. Hadni
  • J. Lecomte

Organizations

  • National Center for Scientific Research

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Crystals
  • Electromagnetic Spectra
  • Halides
  • Infrared Spectra
  • Ionic Crystals
  • Liquid Hydrogen
  • Low Temperature
  • Spectra
  • Thallium

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Semiconductor Device Technology
  • Spectroscopy.