Thermo-optical properties and nonradiative quantum efficiency of Er3+-doped and Er3+/Tm3+-co-doped tellurite glasses

被引：13
作者：
Pilla, V. [1 ]
Chillcce, E. F.
Rodriguez, E.
Catunda, T.
Munin, E.
Cesar, C. L.
Barbosa, L. C.
机构：
[1] Univap, IPD, BR-12244000 Sao Jose Dos Campos, Brazil
[2] Univ Estadual Campinas, IFGW, BR-13083970 Campinas, SP, Brazil
[3] Univ Sao Paulo, IFSC, BR-13560970 Sao Carlos, SP, Brazil
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 32-35期
基金：
巴西圣保罗研究基金会;
关键词：
optical spectroscopy; absorption; luminescence; tellurite; THERMAL LENS SPECTROMETRY; UP-CONVERSION; ENERGY-TRANSFER; CHALCOGENIDE GLASSES; OPTICAL-PROPERTIES; FLUORIDE GLASSES; FIBERS; GREEN; ER3+; TEMPERATURE;
D O I：
10.1016/j.jnoncrysol.2006.03.090
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Thermal lens (TL) measurements were performed in tellurite glasses, 70TeO(2)-19WO(3)-7Na(2)O-4Nb(2)O(5) (mol%), undoped, doped with Er3+ (1.19 x 10(20) ions/cm(3)) and co-doped with Er3+ (1.19 x 10(20) ions/cm(3))/Tm3+ (1.56 x 10(20) ions/cm(3)). The absolute nonradiative quantum efficiency (phi) was determined by the TL method. The phi values for Er3+/Tm3+-co-doped and Er3+-doped tellurite glasses were 0.98 and 0.74, respectively. Fluorescence spectra were performed at lambda(e) = 488 nm and used to estimate the fluorescence quantum efficiency (eta) using the TL results. These values were compared with results obtained by Judd-Ofelt calculations. (c) 2006 Elsevier B.V. All rights reserved.
引用
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页码：3598 / 3602
页数：5
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