Journal
JOURNAL OF RARE EARTHS
Volume 26, Issue 6, Pages 899-903Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(09)60029-6
Keywords
energy transfer; tellurite glass; rare earths
Categories
Funding
- Natural Science Foundation of Zhejiang Province [2006C21082]
- Education Department Project of Zhejiang Province [20061664]
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A study of energy transfer of Er3+/Nd3+ codoped tellurite glasses was presented. By Nd3+ co-doping, both the Er3+ green emission corresponding to the EP3+: (S-4(3/2), H-2(11/2))-> I-4(15/2) transitions and the red emission corresponding to the Er3+: (4) F-9/2 -> I-4(15/2) transitions were quenched. The energy transfer mechanism between Er3+ and Nd3+ was discussed based on their energy level characteristics. The interaction parameters, CD-A, for the energy transfer processes from Er3+ to Nd3+ in tellurites glass were calculated. Finally, the resonant transfer Er3+: I-4(9/2)-> Nd3+: (F-4(5/2), H-2(9/2)) was proposed to be the most probable microscopic process to occur in contrast with the other processes.
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