Accession Number : AD0473066

Title :   EXCITON ABSORPTION IN THE PRESENCE OF EXCITED F CENTERS (II),

Corporate Author : CORNELL UNIV ITHACA NY MATERIALS SCIENCE CENTER

Personal Author(s) : Frohlich, Dietmar ; Mahr, Herbert

Report Date : 29 SEP 1965

Pagination or Media Count : 25

Abstract : A rich spectrum of absorption bands is observed at 7 K near the fundamental absorption edge of KI, RbI, CsI and RbBr crystals containing F-centers in the relaxed excited state. The large population of excited F-centers necessary for these experiments is achieved with a Q-switched Ruby laser. The results are discussed in terms of models of excitons formed near excited F-centers. (Author)

Descriptors :   (*COLOR CENTERS, ABSORPTION), ABSORPTION SPECTRA, SOLID STATE PHYSICS, ATOMIC ENERGY LEVELS, EXCITATION, ATOMIC STRUCTURE, ELECTRON TRANSITIONS, IONIZATION POTENTIALS, ATOMIC PROPERTIES, POTASSIUM COMPOUNDS, IODIDES, RUBIDIUM COMPOUNDS, CESIUM COMPOUNDS, BROMIDES, CRYSTAL SUBSTRUCTURE, LASERS, RUBY, OPTICAL PROPERTIES, MATHEMATICAL ANALYSIS, SPECTRUM ANALYZERS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE