Accession Number:

ADA158396

Title:

Derivation of the Optical Constants of Anisotropic Materials

Descriptive Note:

Final rept. Jul 1982-Jul 1985

Corporate Author:

LITTLE (ARTHUR D) INC CAMBRIDGE MA

Report Date:

1985-07-31

Pagination or Media Count:

34.0

Abstract:

This report concerns the development of methods for obtaining the optical constants of anisotropic crystals of the triclinic and monoclinic systems. The principal method used, classical dispersion theory, is adapted to these crystal systems by extending the Lorentz line parameters to include the angles characterizing the individual resonances, and by replacing the dielectric constant by a dielectric tensor. The sample crystals are gypsium, orthoclase and chalcanthite. The derived optical constants are shown to be suitable for modeling the optical properties of particulate media in the infrared spectral region. For those materials where suitable size single crystals are not available, an extension of a previously used method is applied to alabaster, a polycrystalline material of the monoclinic crystal system.

Subject Categories:

  • Theoretical Mathematics
  • Crystallography
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE