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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Sociedade Brasileira de Física
2013
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=46427890004 |
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Sommario:
- High Quantum Efficiency of Nd3+ Ions in a Phosphate Glass System using the Judd–Ofelt Theory Noelio Oliveira Dantas Elias Oliveira Serqueira Anielle Christine Almeida Silva Acácio Aparecido Andrade Sidney Alves Lourenço Física, Astronomía y Matemáticas Judd Nd3+ ions Ofelt Theory Phosphate glass system High quantum efficiency The optical properties of trivalent neodymium embedded in a P2O5–Al2O3–Na2O–K2O phosphate glass system, synthesized by the fusion method, are studied. Absorption, luminescence, lifetime, and Raman spectroscopy measurements were performed and the Judd–Ofelt theory was applied to determine optical parameters such as the quantum efficiency and the stimulated emission cross section of the Nd3+-doped glass system. This structure has high quantum efficiency at low Nd3+ concentrations, comparable to the efficiency of a commercial YAG:Nd3+ crystal. We discuss the mechanisms responsible for the high quantum efficiency observed in the proposed phosphate glass system. 2013 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46427890004 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.43