Accession Number : ADA111727

Title :   Mechanisms of Iso-Index Behavior in Materials.

Descriptive Note : Final rept. 1 Aug 80-31 Dec 81,


Personal Author(s) : Lotspeich,J F ; Lind,R C

PDF Url : ADA111727

Report Date : 28 Feb 1982

Pagination or Media Count : 46

Abstract : This program entailed a theoretical study of the mechanisms in uniaxial crystals that give rise to a dispersion of the birefringence and in particular to the existence of an iso-index point, a wavelength at which the birefringence passes through zero and changes sign. This property has recently been exploited to devise highly selective optical filters for blue/green applications. The main thrust of the effort was to develop a mathematical tool for predicting the dispersive characteristics of the mixed alloy crystal Zn1-xCdxS, based on knowledge of the refractive properties of the component binary crystals ZnS and CdS.

Descriptors :   *Crystals, *Birefringence, *Dispersions, Optical materials, Refractive index, Mathematical models, Binary compounds, Optical properties, Optical filters, Alloys, Zinc compounds, Blue(Color), Green(Color), Group II compounds, Group VI compounds

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE