DIRECT UPCONVERSION SENSITIZATION LUMINESCENCE OF Ho(0.1)Yb(5):OXYFLUORIDE VITROCERAMICS
Chen Xiao-bo (陈晓波)ab, Zheng Zhe (郑喆)a, Song Zeng-fu (宋增福)c
a Optical Center, Beijing Normal University, Beijing 100875, China; a Beijing Normal University, Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Beijing 100875, Chinab Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Science, Beijing 100080, China; c Department of Physics, Peking University, Beijing 100875, China
Abstract This paper studies the upconversion luminescence phenomenon of the Ho,Yb co-doped oxyfluoride vitroceramics. There is one group of strong upconversion luminescence lines positioned at 536.5nm, 18639cm-1; 540.5nm, 18501cm-1; 544.0nm, 18399cm-1, which is easily identified as the transitions of 5S2→5I8. There are other splendid upconversion luminescence lines, which are 5S2→5I7,5F5→5I8,5G6→5I8, (5G3G)5 →5I8,(3F3H5G)4→5I7,5G4→5I8 and (5G3H)5→5I8. It is also found that an interesting kind of upconversion cooperative radiation fluorescence comes from a kind of coupling state of clusters consisting of two Yb3+ ions.
Received: 05 June 2001
Revised: 22 August 2001
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19874033), the Open Research Fund of the Institute of Physics and the Institute of Semiconductor Physics of Chinese Academy of Sciences.
Cite this article:
Chen Xiao-bo (陈晓波), Zheng Zhe (郑喆), Song Zeng-fu (宋增福) DIRECT UPCONVERSION SENSITIZATION LUMINESCENCE OF Ho(0.1)Yb(5):OXYFLUORIDE VITROCERAMICS 2001 Chinese Physics 10 1163
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