文献类型：期刊文献

英文题名：Three-photon-excited upconversion luminescence of niobium ions doped silicate glass by a femtosecond laser irradiation

作者：Zeng, Huidan[1];Song, Juan[2];Chen, Danping[2];Yuan, Shuanglong[1];Jiang, Xiongwei[2];Cheng, Ya[2];Yang, Yunxia[1];Chen, Guorong[1]

机构：[1]E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

年份：2008

卷号：16

期号：9

起止页码：6502

外文期刊名：OPTICS EXPRESS

收录：;EI(收录号：20081911247169);WOS:【SCI-EXPANDED(收录号:WOS:000255663000058)】；

语种：英文

外文关键词：Charge transfer - Laser beam effects - Pumping (laser) - Silicates - Ultrashort pulses

摘要：We report on the bluish green upconversion luminescence of niobium ions doped silicate glass by a femtosecond laser irradiation. The dependence of the fluorescence intensity on the pump power density of laser indicates that the conversion of infrared irradiation to visible emission is dominated by three-photon excitation process. We suggest that the charge transfer from O-2-to Nb5+ can efficiently contribute to the bluish green emission. The results indicate that transition metal ions without d electrons play an important role in fields of optics when embedded into silicate glass matrix. (C) 2008 Optical Society of America.