Luminescence of Tb_<1-x>Y_xPO_4 under the Strong and Selective Excitation of ^5D_4 of Tb^<3+> Ion
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概要
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Luminescence of Tb_<1-x>Y_xPO_4 under the strong and selective excitation of ^5D_4 manifold of Tb^<3+> ion is investigated using the 488 nm light from an argon ion laser at 1.8 K. Besides the strong luminescence from ^5D_4, weak anti-Stokes luminescence from ^5D_3 is observed. On the basis of the arguments in which the dependence of the pumping rate of ^5D_3 on the Tb^<3+> concentrarion is analyzed, it is verified that due to the resonance energy transfer between two excited Tb^<3+> ions, one ion is excited into higher states, thus yielding the observed anti-Stokes luminescence. The Probability of this energy transfer for the nearest neighbor ion pair is experimentally estimated as 10^6 sec^<-1>.
- 社団法人日本物理学会の論文
- 1972-07-05
著者
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Shionoya Shigeo
The Institute for Solid State Physics, The University of Tokyo
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Shionoya Shigeo
The Institute For Solid State Physics The University Of Tokyo
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Hirano Masahiro
The Institute For Solid State Physics The University Of Tokyo
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