Spectral properties of Er3+-doped CaGdAlO4 crystal for laser application around 1.55 μm

被引：12
作者：
Huang, J. H. [1 ]
Gong, X. H. [1 ]
Chen, Y. J. [1 ]
Lin, Y. F. [1 ]
Luo, Z. D. [1 ]
Huang, Y. D. [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 585卷
基金：
中国国家自然科学基金;
关键词：
Er:CaGdAlO4 crystal; Optical materials; Optical properties; RARE-EARTH IONS; SPECTROSCOPIC PROPERTIES; ENERGY-TRANSFER; FLUORESCENCE DYNAMICS; OPTICAL SPECTROSCOPY; TELLURITE GLASSES; ROOM-TEMPERATURE; SINGLE-CRYSTALS; CONTINUOUS-WAVE; ER3+;
D O I：
10.1016/j.jallcom.2013.09.032
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：
Room-temperature polarized spectral properties of the Er:CaGdAlO4 crystal are reported. The Judd-Ofelt theory was applied to analyze the polarized absorption spectra and then calculate the spontaneous emission probabilities, radiative lifetimes, and branch ratios. Room-temperature fluorescence lifetimes of the I-4(13/2), I-4(11/2), F-4(9/2), and S-4(3/2) multiplets for Er3+ ions were measured. Stimulated emission cross-sections of the I-4(13/2) -> I-4(15/2) transition obtained by the Fuchtbauer-Ladenberg formula and the reciprocity method were compared. The results show that the Er:CaGdAlO4 crystal may be a potential gain medium for a low-threshold 1.55 mu m laser. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：163 / 167
页数：5
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