Defect structures and optical characteristics of Er3+ ion in Er:LiNbO3 crystals

被引：9
|
作者：
Qian, Yannan [1 ]
Wang, Rui [2 ]
Wang, Biao [1 ]
Xu, Chao [2 ]
Xing, Lili [2 ]
Xu, Yanling [2 ]
机构：
[1] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China
[2] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2013年 / 1035卷
基金：
中国国家自然科学基金; 黑龙江省自然科学基金;
关键词：
Er:LiNbO3; Defect structure; Stokes and anti-stokes luminescence spectra; Near infrared emission spectra; Judd-Ofelt; Fuchtbauer-Ladenburg and McCumber theory; TRANSPARENT GLASS-CERAMICS; UP-CONVERSION; LITHIUM-NIOBATE; SPECTROSCOPIC PROPERTIES; NAYF4; NANOCRYSTALS; NONRADIATIVE DECAY; DAMAGE RESISTANCE; DOPED LINBO3; ZN2+ IONS; EMISSION;
D O I：
10.1016/j.molstruc.2012.09.039
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Congruent Er:LiNbO3 crystals were grown by Czochraski method. The OH- absorption and UV-vis-near infrared absorption spectra indicated that Er3+ cluster sites were formed in LiNbO3 crystal doped with 3 mol% Er3+ ions. Studies on the stokes and anti-stokes spectra showed that the formation of Er3+ cluster sites could increase the rate of cross relaxation processes. Judd-Ofelt theory was carried out to discuss the spectral characteristics of Er3+ ions in Er:LiNbO3 crystals. Based on Fuchtbauer-Ladenburg and McCumber theory, the emission cross section of the I-4(13/2) -> I-4(15/2) transition of Er3+ ion was calculated, and the potential laser performance was evaluated by the gain cross section spectra. Er:LiNbO3 crystal codoped with Zn2+ ions was also grown to discuss the relation between the defect structure and optical characteristics of Er3+ ion. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：101 / 108
页数：8
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