The energy of Cr4+ local modes and the energy and dynamics of Mg2SiO4 phonon modes involved in the nonradiative relaxation of photoexcited impurity Cr4+ ions in forsterite crystal were measured. The experimental results suggest that resonance in energy between local vibrations of the impurity ion and lattice (phonon) modes of the host crystal plays a crucial role in selecting the phonons which participate in the nonradiative relaxation of the photoexcited ions in crystals.
|Original language||English (US)|
|Number of pages||1|
|Journal||Applied Physics Letters|
|State||Published - 1995|
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)