Spectra and Upconversion of Neodymium Tungstate Crystals

作     者：臧竞存 刘燕行 方方 

作者机构：Coll. of Mat. Sci. and Eng. Beijing Polytech. Univ. Beijing 100022 China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2001年第19卷第4期

页      面：246-249页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：ProjectsupportedbytheBeijingEducationCommitteeandOpticalPhysicsLaboratory InstituteofBeijingPhysics ChineseAcademyofSciences 

主　　题：rare earths Nd-2(WO4)(3) single crystals upconversion spectra 

摘      要：The neodymium tungstate single crystals Nd-2(WO4)(3) were grown using the Czochralski method. The energy level scheme of Nd3+, was obtained through the spectral measurement. The upconversion luminescence of the crystals at 457 and 657 nm, corresponding to the (D5/2--I11/2)-D-4-I-4 and (2)G(7/2)--I-4(9/2) transitions, respectively, excited by 808 nm of a laser diode, was observed at room temperature. The fluorescence intensity and the excitation light power have a linear relationship at 457 nm and a quadratic relationship at 657 nm.