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Optics Express|March 5, 2009
Red upconversion emission in LiNbO3 codoped with Er3+ and Eu3+Ai-Hua Li, Zhi-Ren Zheng, Tian-Quan Lü, et al.Optics Letters|May 3, 2008
Two-photon-excited luminescence in a Tb3+ -doped lithium niobate crystal pumped by a near-infrared femtosecond laserAi-Hua Li, Zhi-Ren Zheng, Qiang Lü, et al.Optics Letters|April 3, 2008
Enhanced green upconversion emission of Er(3+) through energy transfer by Dy(3+) under 800 nm femtosecond-laser excitationAi-Hua Li, Qiang Lü, Zhi-Ren Zheng, et al.Pageof 1