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

被引:29
作者
Dantas, Noelio Oliveira [1 ]
Serqueira, Elias Oliveira [1 ]
Almeida Silva, Anielle Christine [1 ]
Andrade, Acacio Aparecido [2 ]
Lourenco, Sidney Alves [3 ]
机构
[1] Univ Fed Uberlandia, Inst Fis, LNMIS, BR-38400902 Uberlandia, MG, Brazil
[2] Univ Fed Uberlandia, Inst Fis, GPOTM, BR-38400902 Uberlandia, MG, Brazil
[3] Univ Tecnol Fed Parana, BR-86036370 Londrina, PR, Brazil
关键词
High quantum efficiency; Nd3+ ions; Phosphate glass system; Judd-Ofelt Theory; RARE-EARTH IONS; RADIATIVE TRANSITION-PROBABILITIES; EMISSION CROSS-SECTIONS; SPECTROSCOPIC PROPERTIES; OPTICAL-PROPERTIES; BORATE GLASSES; ENERGY-TRANSFER; FLUORESCENCE; ABSORPTION; PARAMETERS;
D O I
10.1007/s13538-013-0145-y
中图分类号
O4 [物理学];
学科分类号
0702 ;
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.
引用
收藏
页码:230 / 238
页数:9
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