Highly efficient up-conversion in Nd:Y2O3 transparent ceramics

被引：6
|
作者：
Zhang, Lei [1 ,2 ,3 ]
Yang, Jun [4 ]
Yu, Hongyu [5 ]
Pan, Wei [3 ]
机构：
[1] Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
[2] Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
[3] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[4] Army Engn Univ PLA, Dept Gen Educ, Nanjing 211101, Peoples R China
[5] Southern Univ Sci & Technol, Sch Microelect, GaN Device Engn Technol Res Ctr Guangdong, Shenzhen 518055, Peoples R China
来源：
SCRIPTA MATERIALIA | 2020年 / 178卷
基金：
中国国家自然科学基金;
关键词：
Optical materials; Transparent ceramics; Up-conversion luminescence; Nd:Y2O3; NEAR-INFRARED EMISSION; INTENSITIES; ABSORPTION;
D O I：
10.1016/j.scriptamat.2019.11.048
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Up-conversion (UC) luminescence properties of Nd:Y2O3 transparent ceramics are investigated. It is shown that, under a laser excitation of 808 nm, the samples exhibit significant UC emission. With an increase in the Nd3+ concentration, the intensity of green emission decreases, while the intensity of red emission first increases and then decreases. In particular, both green and red UC emissions are found to be two-photon processes, but with different quantum transition mechanisms. In addition, the dependence of UC emission intensity on the pumping power is studied. Our studies indicate that Nd:Y2O3 transparent ceramics are promising candidates as short-wavelength UC laser material. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：281 / 284
页数：4
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