Abstract
The lifetimes of the R-lines from the 2E level and the broad bands from the 4T2 level of Cr3+ ions in various garnet crystals vary with the energy separation between the 2E and 4T2 levels, which change systematically with the composition of host crystal. The trend of the Cr3+ lifetimes, as well as their temperature dependences in garnet crystals, is explained by zero-point vibration and phonon-assisted tunnelling between the 2E and 4T2 states of Cr3+ ion.
Original language | English |
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Pages (from-to) | 425-431 |
Number of pages | 7 |
Journal | Applied Physics B Photophysics and Laser Chemistry |
Volume | 50 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 May 1990 |
Keywords
- garnet crystals
- luminescence