Raman scattering by hydride and deuteride ion local modes in calcium and strontium fluoride

Abstract

A simple enhancement technique which was found to increase Raman scattered signals from local modes of hydride and deuteride ions in CaF2 and SrF2 by a factor of up to five is described. It enabled the fundamental and all three second harmonic transitions of both hydride and deuteride ions located in the tetrahedral Td sites to be observed. Anharmonic potential well constants for these sites are reported.