| Autor: |
I.N. Vorob'ev, J. Heber, Yu.V. Orlovskii, Alexander G. Papashvili, T. T. Basiev, O.K. Alimov, Vyacheslav V. Osiko |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.475335 |
| Popis: |
The detailed site-selective and time-resolved fluorescence laser spectroscopy and kinetic measurements with high spectral and nanosecond temporal resolution were applied to analyze the M and N absorption bands at the 4 I 9/2 (1) yields 4 G 5/2 (1) crystal field (CF) transition in the CaF 2 :Nd 3+ crystal at 4.2 K. It was found that at helium temperatures the dynamically split spectral line at the 4 I 9/2 (1) yields 4 G 5/2 (1) CF transition of coherently coupled Nd 3+ ions in the pair M- and quartet N-centers is inhomogeneously broadened. Small variation of fluorescence lifetimes of the 4 F 3/2 and 4 D 3/2 levels due to small variation of distances between Nd 3+ ions in the pairs was found. Approximately 1 percent variation of the Nd-Nd distance in the pair -center was determined form lifetime variation of the 4 F 3/2 manifold. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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