Growth and Optical Properties of In: Yb: Nd: LiNbO3 Crystals

被引：0
|
作者：
Ji L. [1 ]
Sun T. [1 ]
Sheng Y. [1 ]
Zhao G. [1 ]
Xu Y. [2 ]
机构：
[1] Liaoning University of Technology, Jinzhou, 121001, Liaoning
[2] Harbin Institute of Technology, Harbin
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2019年 / 47卷 / 01期
关键词：
Czochralski method; Indium-ytterbium-neodymium codoped lithium niobate crystal; Ultraviolet-visible absorption spectra; Up-conversion fluorescence emission spectra;
D O I：
10.14062/j.issn.0454-5648.2019.01.05
中图分类号：
学科分类号：
摘要：
Three congruent LiNbO3 single crystals doped with Yb2O3 (0.4%, in mole fraction), Nd2O3(0.4%)and In2O3 (0.5%, 1.0%, 2.0%) were grown by the Czochralski method. The ultraviolet-visible absorption spectra and up-conversion fluorescence emission spectra of In: Yb: Nd: LiNbO3 crystals were measured. The relationship between up-conversion luminous intensity and excitation power of optimum doped crystals was investigated. The results show that the absorption edge positions of In: Yb: Nd: LiNbO3 crystal are located at 349, 340 and 338nm as In3+ ions concentration is increased. The up-conversion emission spectrum obtained by excitation with a 980 nm diode laser indicates that the green up-conversion emission center wavelength is located at 562nm, which is corresponding to Nd3+ ions 4G9/2 → 4I11/2 transition, and In: Yb: Nd: LiNbO3 crystal has the most intense luminous intensity. The red up-conversion emission center wavelength is located at 726nm, which is corresponding to Nd3+ ions 4G9/2 → 4I15/2 transition. The optimum up-conversion fluorescence property of 2%In: Yb: Nd: LiNbO3 crystal can be obtained. The results of different excitation power tests show that the near-infrared up-conversion fluorescence of Nd3+ ions is a single photon process, and the green up-conversion fluorescence and the red up-conversion fluorescence of Nd3+ ions bothare a two-photon process. © 2019, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：39 / 42
页数：3
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