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Acta Physica Sinica (Overseas Edition), 1998, Vol. 7(10): 773-783    DOI: 10.1088/1004-423X/7/10/009
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

UPCONVERSION FLUORESCENCE DYNAMICS OF Tm3+ IONS IN LiYF4 CRYSTAL

Chen Xue-yuan (陈学元)a, Luo Zun-du (罗遵度)ab
a Fujian Institute of Research on the Structure of Matter, Academia Sinica, Fuzhou 350002, China; b China Centre of Advance Science and Technology (CCAST) (World Laboratory), P. O. Box 8730, Beijing 100080, China
Abstract  According to Judd-Ofelt parameter calculation and energy transfer theory, the cross-relaxation process of the Tm3+ ions is investigated. A four-level system of coupled rate equations is established to study the fluorescence dynamics of Tm3+ in LiYF4 crystal. Attentions are focused on the upconversion luminescence 1G43H6 (483.0 nm) in Tm3+:LiYF4. The relationship between the avalanche properties (critical pump rate, fluorescence intensity and buildup time) originated by resonant excited state absorption and the doped Tm3+ concentration is discussed, and some useful conclusions are drawn.
Received:  25 February 1998      Revised:  07 April 1998      Accepted manuscript online: 
PACS:  78.55.Hx (Other solid inorganic materials)  
  61.72.up (Other materials)  
  61.72.S- (Impurities in crystals)  
Fund: Project supported by the Natural Science Foundation of Fujian Province, China.

Cite this article: 

Chen Xue-yuan (陈学元), Luo Zun-du (罗遵度) UPCONVERSION FLUORESCENCE DYNAMICS OF Tm3+ IONS IN LiYF4 CRYSTAL 1998 Acta Physica Sinica (Overseas Edition) 7 773

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