Upconversion luminescence of Ce3+ doped BK7 glass by femtosecond laser irradiation

被引：0
|
作者：
Wang Chen [1 ]
Peng Mingying
Yang Luyun
Hu Xiao
Da Ning
Chen Danping
Zhu Congshan
Qiu Jianrong
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[3] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF RARE EARTHS | 2006年 / 24卷 / 06期
关键词：
femtosecond laser; Ce3+; upconversion; f-d transition; multiphoton process; rare earths;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Near-infrared to visible upconversion luminescence was observed in a multicomponent silicate (BK7) glass containing Ce3+ ions under focused infrared femtosecond laser irradiation. The emission spectra show that the upconversion luminescence comes from the 4f-5d transition of the Ce3+ ions. The relationship between the intensity of the Ce3+ emission and the pump power reveals that a three-photon absorption predominates in the conversion process from the near-infrared into the blue luminescence. The analysis of the upconversion mechanism suggests that the upconversion luminescence may come from a three-photon simultaneous absorption that leads to a population of the 5d level in which the characteristic luminescence occurs.
引用
收藏
页码：754 / 756
页数：3
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