Raman scattering of light from H— centers in CaF2

Open Access
Publisher Website
Google Scholar
Abstract
The Raman scattering of light from the localized vibrations of single crystals of CaF2 containing low concentrations of H- substituted for fluorine ions has been studied. Selection rules are given. For a model of the defect as a particle vibrating in an anharmonic well, the energies of the ground state, fundamental, and the first and second harmonic of the localized mode are calculated. Intensities are calculated with this model for transitions from the ground state to the Raman active components of these levels. These intensities contain the expansion coefficients of the polarizability which are left as parameters with the exception of the first order coefficient Pxy,z. This coefficient has been calculated variationally ; the calculated value is Pxy,z = .163 Å2. No definite experimental results can be reported because of trouble with sample preparation. Samples with a sufficient concentration of H- show a broad emission band in the region where the Raman line is expected

This publication has 6 references indexed in Scilit: