Optical properties of Er3+/Yb3+-codoped transparent PLZT ceramic

被引：18

作者：

Zheng, Zhiqiang ^{[1
]}

Li, Xiaoyan ^{[1
]}

Liu, Jing ^{[1
]}

Feng, Zhuohong ^{[1
]}

Li, Baozeng ^{[2
]}

Yang, Jiwen ^{[2
]}

Li, Kewen ^{[3
]}

Jiang, Hua ^{[3
]}

Chen, Xuesheng ^{[4
]}

Me, Jianping ^{[2
]}

Ming, Hai ^{[2
]}

机构：

[1] Fujian Normal Univ, Dept Phys, Fuzhou 350007, Fujian, Peoples R China

[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

[3] Boston Appl Technol Inc, Woburn, MA 01801 USA

[4] Wheaton Coll, Dept Phys & Astron, Norton, MA 02766 USA

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 01期

关键词：

Er3+/Yb3+ ions; optical properties; PLZT ceramics; Judd-Ofelt analysis; upconversion;

D O I：

10.1016/j.physb.2007.08.005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Optical absorption and emission spectra of Er3+/Yb3+ ions in PLZT (Pb1-xLaxZryTi1-yO3) ceramic have been studied. Based on the Judd-Ofelt (J-O) theory, the J-O intensity parameters were calculated to be Omega(2) = 2.021 x 10(-2)0 cm(2), Omega(4) = 0.423 x 10(-20) cm(2), Omega(6) = 0.051 x 10(-20) cm(2) from the absorption spectrum of Er3+/Yb3+-codoped PLZT, The J-O intensity parameters have been used to calculate the radiative lifetimes and the branching ratios for some excited I-4(13/2), I-4(11/2), I-4(9/2) F-4(9/2), and S-4(3/2) levels of Er3+ ion, The stimulated emission cross-section (8.24 x 10(-21) cm(2)) was evaluated for the I-4(13/2) -> I-4(15/2) transition of Er3+. The upconversion emissions at 538, 564, and 666 mn have been observed in Er3+/Yb3+-codoped PLZT by exciting at 980 rim, and their origins were identified and analyzed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：44 / 49

页数：6

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