Visible upconversion and infrared luminescence investigations of Al2O3 powders doped with Er3+, Yb3+ and Zn2+ ions

被引：42
作者：
Singh, V. [1 ,3 ]
Rai, V. K. [2 ]
Ledoux-Rak, I. [1 ]
Badie, L. [1 ]
Kwak, H. -Y. [3 ]
机构：
[1] Ecole Normale Super, Inst Alembert, Lab Photon Quant & Mol, CNRS,UMR 8537, F-94235 Cachan, France
[2] Indian Sch Mines, Dept Appl Phys, Dhanbad 826004, Bihar, India
[3] Chung Ang Univ, Dept Mech Engn, Seoul 156756, South Korea
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2009年 / 97卷 / 04期
关键词：
1.5; MU-M; ENERGY-TRANSFER; OPTICAL-PROPERTIES; TELLURITE GLASSES; PHOTOLUMINESCENCE; SPECTROSCOPY; EMISSION; BAND;
D O I：
10.1007/s00340-009-3606-9
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Alumina (Al2O3) powders doped with Er3+, Yb3+ and Zn2+ ions have been prepared by a low-temperature combustion synthesis technique. The phase purity and crystalline structure of the combustion products are confirmed by powder X-ray diffraction. An efficient frequency upconversion in the visible region and the emission in the infrared (IR) region respectively corresponding to the H-2(11/2), S-4(3/2)-> I-4(15/2), F-4(9/2)-> I-4(15/2) and I-4(13/2)-> I-4(15/2) transitions upon direct excitation with a CW laser lasing at similar to 980 nm are discussed. The enhancement observed in the intensity of the upconversion emission bands in the visible region and the emission band in the IR region due to the presence of Yb3+ and Zn2+ in Er3+:Al2O3 powders is reported and explained in detail.
引用
收藏
页码：805 / 809
页数：5
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