Optical intensities of Pr3+ ions in transparent oxyfluoride glass and glass-ceramic. Applications of the standard and modified Judd-Ofelt theories
The optical characterisation of Pr3+ ions in transparent SiO2–Al2O3–CdF2–PbF2–YF3 based glass and glass–ceramic have been performed. From absorption and emission spectra the oscillator strengths of the 4f2–4f2 electronic transitions have been obtained. The intensity parameters have been calculated u...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2004 |
| País: | España |
| Institución: | Universidad de La Laguna (ULL) |
| Repositorio: | RIULL. Repositorio Institucional de la Universidad de La Laguna |
| OAI Identifier: | oai:riull.ull.es:915/40818 |
| Acceso en línea: | http://riull.ull.es/xmlui/handle/915/40818 |
| Access Level: | acceso abierto |
| Palabra clave: | Glass–ceramic Nanostructures Pr3+ Optical properties |
| Sumario: | The optical characterisation of Pr3+ ions in transparent SiO2–Al2O3–CdF2–PbF2–YF3 based glass and glass–ceramic have been performed. From absorption and emission spectra the oscillator strengths of the 4f2–4f2 electronic transitions have been obtained. The intensity parameters have been calculated using both the Judd–Ofelt theory and the modified theory developed by Kornienko, Kaminskii and Dunina. A comparison of the experimental oscillator strengths, the spontaneous emission probabilities and the lifetimes of the 3P0 level and those calculated using the above theoretical procedures has been performed for both samples. The root mean square deviation found using the standard Judd–Ofelt theory is larger than the value obtained with the modified treatment. |
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