| タイトル | Analysis of vibronic transitions in titanium doped sapphire using the temperature of the fluorescence spectra |
| 著者（英） | Buoncristiani, A. M.; Byvik, C. E. |
| 著者所属（英） | NASA Langley Research Center|Christopher Newport Coll. |
| 発行日 | 1985-10-01 |
| 言語 | eng |
| 内容記述 | An analysis of the fluorescence spectra of titanium-doped sapphire crystals for temperatures ranging from 13 to 578 K is made. Zero- and multiphoton assisted electronic transitions are observed at temperatures below 125 K. Zero-phonon transition energies agree with previously reported measured and predicted values. Photon-assisted transitions suggest that two principle modes of lattice vibrations with energies of 220 and 260/cm are coupled to the electronic 2T2g state. A single phonon energy of 173/cm is observed to couple to the 2Eg electronic state. Crossover energy is estimated to be about 11,800/cm using a simple harmonic approximation. Lineshape analysis is performed. The fluorescence lifetime as measured to be a constant 3.9 microsec below 150 k decreasing to 2.9 microsec at 300 K. |
| NASA分類 | LASERS AND MASERS |
| レポートNO | 86A17934 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/387269 |
