Abstract
The energy of the 4A2 → 4T2 transition of 3d3 ions in octahedral sites decreases with increasing temperature, with a consequent reduction in the energy separation, Δ, between 4T2 and 2E levels. This can significantly affect the spectroscopic properties of Cr3+-doped materials with small Δ values. These materials are of interest because of their possible use in tunable laser systems. Some experimentally measured values of this shift are presented, the mixing of 2E and 4T2 electronic-vibrational states when Δ is small is estimated, and the effects of this mixing on the spectroscopic properties are discussed.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 119-125 |
| Number of pages | 7 |
| Journal | Journal Of Luminescence |
| Volume | 42 |
| Issue number | 3 |
| Publication status | Published - 1 Sep 1988 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- DONNELLY, CJ,HEALY, SM,GLYNN, TJ,IMBUSCH, GF,MORGAN, GP