[1] G. Poirier, F. C. Cassanjes, C. B. de Araujo et al.. Optical properties and frequency upconversion fluorescence in a Tm3+-doped alkali niobium tellurite glass［J］. J. Appl. Phys., 2003, 93(6): 3259～3263
[2] N. Rakov, G. S. Maciel, M. L. Sundheimer et al.. Blue upconversion enhancement by a factor of 200 in Tm3+-doped tellurite glass by codOping with Nd3+ ions［J］. J. Appl. Phys., 2002, 92(10): 6337～6339
[3] R. Reisfeld, C. K. Jorgensen. Lasers and Excited States of Rare Earths［M］. Berlin: Springer. 1977
[4] H. R. Zheng, X. J. Wang, M. J. Dejneka et al.. Up-converted emission in Pr3+-doped fluoride nanocrystals-based oxyfluoride glass ceramics［J］. J. Lumin., 2004, 108(1-4): 395～399
[5] P. Zeller, P. Peuser. Efficient, multiwatt, continuous-wave laser operation on the 4F(3/2)-4I(9/2) transitions of NdYVO4 and NdYAG［J］. Opt. Lett., 2000, 25(1): 34～36
[6] S. Bjurshagen, D. Evekull, R. Koch. Generation of blue light at 469 nm by efficient frequency doubling of a diode-pumped NdYAG laser［J］. Electron. Lett., 2002, 38(7): 324～325
[7] S. Nakamura, G. Fasol. The Blue Laser Diode. GaN Based Light Emitters and Lasers［M］. Berlin: Springer. 1997
[8] G. Blasse, B. C. Grabmaier. Luminescent Materials［M］.Berlin: Springer.1994
[9] M. F. Joubert. Photon avalanche upconversion in rare earth laser materials［J］. Opt. Mater., 1999, 11(2-3): 181～203
[10] H. R. Zheng, X. J. Wang. Dynamical processes of Ln3+ ions doped in LaF3 nanocrystals embedded in transparent oxyfluoride glass［J］. J. Lumin., 2006, 119-120: 153～160
[11] G. Ozen, A. Kermaoui. Excited state absorption mechanisms of red to UV and blue conversion luminescence in Tm3+ doped fluorophosphate glass［J］. J. Lumin., 1995, 63(1-2): 85～96
[12] A. Vladimir, C. B. Jerez and de Araujo. Dynamics of energy transfer and frequency upconversion in Tm3+ doped fluoroindate glass［J］. J. Appl. Phys., 2004, 96(5): 2530～2534
[13] M. Inoluti, F. Hirayama. Influence of energy transfer by the exchange mechanism on donor luminescence［J］. J. Chem. Phys., 1965, 43(6): 1978～1989
[14] S. Guy, M. Malinowski. Dynamics of the high lying excited states of Tm3+ ions in YAG［J］. J. Lumin., 1996, 68(2-4): 115～127
[15] D. C. Hanna, R. M. Percival, R. G. Smart et al.. Efficient and tunable operation of a Tm-doped fibre laser［J］. Opt. Commun., 1990, 75(3-4): 283～286
[16] H. R. Zheng, D. L. Gao, X. Y. Zhang et al.. Fluorescence characteristics of Tm3+ in different local environments［J］. J. Appl. Phys., 2008, 104(1): 013506
[17] Gao Dangli, Li Guian, Zhang Xiangyu et al.. Influence of local environment on the temperature-dependent fluorescence properties of Tm3+-doped transparent oxyfluoride glass ceramics containing LaF3 nanocrystals [J]. Chinese Sci. Bull., 2009, 54(15): 2183～2187
[18] Jiang Dong, Hu Xiaoyun, Miao Zhonghai et al.. Luminescent properties of Eu3+ in nano-matrix of SiO2 [J]. Chinese J. Lasers, 2009, 36(2): 450～452
[19] Xu Guangqing, Zheng Zhixiang, Tang Wenming et al.. Photoluminescence studies of nanometer Ce3+-doped SiO2 synthesized by sol-gel method [J]. Acta Optica Sinica, 2005, 25(8): 1082～1086
[20] S. H. Huang, S. T. Lai, L. R. Lou et al.. Upconversion in LaF3Tm3+［J］. Phys. Rev. B, 1981, 24(1): 59～63
[21] W. T. Carnall, P. R. Fields, J. Morrison et al.. Absorption spectrum of Tm3+［J］. J. Chem. Phys., 1970, 52(8): 4054～4059
[22] A. F. H. Librantz, L. Gomes. Population inversion between the 3H4 and the 3F4 excited states of Tm3+ investigated by means of numeri-cal solutions of the rate equations system in Tm3+-doped and Tm3+, Ho3+-codoped fluoride glasses［J］. J. Lumin., 2009, 129(4): 376～381
[23] L. S. Bollen, A. Crowley, G. Stodulski et al.. Dynamics of the high lying excited states of Tm3+ ions in YAG［J］. J. Lumin., 1996, 68(2-4): 115～127
[24] K. U. Kumar, V. A. Prathyusha, P. Babu et al.. Fluorescence properties of Nd3+-doped tellurite glasses［J］. Spectrochimical Act. Part A, 2007, 67(3-4): 702～708
[25] A. A. Kaminskii. Crystalline Lasers: Physical Process and Operating Schemes［M］.Florida: CRC. 1996
