[1] Li Jing,Wang Jiyang,Su Jing et al.. Optical properties of Ho3+,Yb3+:YAl3(BO3)4 crystal [J]. J. Optoelectron·Laser,2005,16(9):1067-1070

[2] Zhang Xingbao,Wang Yuezhu,Yao Baoquan et al.. Research and progress on double doped Tm,Ho:YLF laser [J]. Laser & Optoelectronics Progress,2004,41(10):29-33

[3] Zang Jingcun,Shan Bingrui,Song Yanrong et al.. Spectroscopy and upconversion process in Ho3+:ZnWO4 crystal [J]. J. Chin. Ceram. Soc.,2005,33(5):538-546

[4] Wang Yuming,Zhang Lijie,Lei Ming et al.. Structure and spectra characteristics of KYb(WO4)2 crystal grown by kyropoulos method [J]. Chinese J. Lasers,2006,33(5):697-700

[5] Chen Xiaobo,Liu Kai,Zhuang Jian et al.. The upconversion luminescence research of HoYb:YVO4 [J]. Acta Physica Sinica,2002,51(3):690-695

[6] Xiong Wei,Lin Shukun,Huang Xiaohui. Growth and spectral properties of Yb3+-Ho3+ doped Gd0.8La0.2VO4 crystal [J]. J. Chin. Rare Earth Soc.,2004,22(6):891-894

[7] Liu Haibin,Li Hongtao,Guo Fengyun et al.. Research on spectrum properties of LiNbO3 crystal doped with holmium [J]. J. Synth. Cryst.,2007,36(4):821-824

[8] Wang Yingwei,Wang Zidong,Cheng Haobo. Structure and spectrum of the novel laser crystal Yb:KY(WO4)2 [J]. Acta Physica Sinica,2006,55(9):4803-4808

[9] Zhu Zhongli,Lin Hai,Qian Yannan et al.. Growth of Ho3+,Yb3+ co-doped KGd(WO4)2 crystal by kyropoulos method and its spectral property [J]. Chinese J. Lasers,2007,34(10):1436-1440

[10] Zhu Zhongli,Wu Yufang,Lin Hai et al.. Growth and properties of Ho3+:Yb3+:KLa(WO4)2 laser crystal [J]. J. Chin. Ceram. Soc.,2008,36(8):1074-1078