Accession Number:

AD0628793

Title:

TEMPERATURE DEPENDENCE OF THE INFRARED SPECTRA OF SELECTED DIELECTRICS II.

Descriptive Note:

Final rept. Jan-Nov 65,

Corporate Author:

LITTLE (ARTHUR D) INC CAMBRIDGE MASS

Personal Author(s):

Report Date:

1965-11-30

Pagination or Media Count:

26.0

Abstract:

The damping constant as a function of temperature was compared with theoretical equation and showed agreement at high temperature but deviated from the equation at low temperature. A dispersion analysis for LiF and MgO was performed. The calculations show that in order to have a satisfactory fit between the experimental and calculated value of reflectivity one must assume that the high frequency dielectric constant is a function of temperature. The infrared spectra of alpha-quartz was measured as a function of temperature with polarized light. It was observed that the infrared bands shift to longer wave length as the lattice expands. Author

Subject Categories:

  • Crystallography
  • Atomic and Molecular Physics and Spectroscopy
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE