| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1872465 | Physics Procedia | 2011 | 4 Pages |
Abstract
We have investigated phonon properties of some crystals with characteristic light emission properties by using measurements of far-infrared absorption and photoluminescence in order to discuss a correlation between them. It has been found that there is a systematic correlation between phonon states and light emission efficiency and that the phonons above the energy of more than ∼44 meV may be effectively coupled to the optical indirect transition for the IR light emission from crystals.
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