Accession Number : AD0685986

Title :   THE EFFECTS OF NONUNIFORM ELECTRO-MAGNETIC FIELDS ON THE DIELECTRIC PROPERTIES OF CRYSTALS,

Corporate Author : CANADIAN ARMAMENT RESEARCH AND DEVELOPMENT ESTABLISHMENT QUEBEC

Personal Author(s) : Beaulieu,A. J.

Report Date : 13 MAR 1967

Pagination or Media Count : 13

Abstract : All the treatments of the interaction between electromagnetic radiation and phonons in ionic crystals assume that the electromagnetic field can be considered as uniform. With the very strong absorption present in such crystals this assumption leads to serious errors for all finite angles of incidence. Taking into account the nonuniformity of the field leads to the conclusion that significant interaction with the LO modes exists even in crystals of cubic symmetry, contrary to all other theoretical models assuming the uniformity of the electromagnetic field. (Author)

Descriptors :   (*CRYSTALS, DIELECTRIC PROPERTIES), ELECTROMAGNETIC FIELDS, INTERACTIONS, APPROXIMATION(MATHEMATICS), PHONONS, CANADA

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE