High Quantum Efficiency of Nd3+ Ions in a Phosphate Glass System using the Judd–Ofelt Theory

被引：0
|
作者：
Noelio Oliveira Dantas
Elias Oliveira Serqueira
Anielle Christine Almeida Silva
Acácio Aparecido Andrade
Sidney Alves Lourenço
机构：
[1] Universidade Federal de Uberlândia,Laboratório de Novos Materiais Isolantes e Semicondutores (LNMIS), Instituto de Física
[2] Universidade Federal de Uberlândia,Grupo de Propriedades Ópticas e Térmicas de Materiais (GPOTM), Instituto de Física
[3] Universidade Tecnológica Federal do Paraná,undefined
来源：
Brazilian Journal of Physics | 2013年 / 43卷
关键词：
High quantum efficiency; Nd; ions; Phosphate glass system; Judd–Ofelt Theory;
D O I：
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学科分类号：
摘要：
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.
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页码：230 / 238
页数：8
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