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Study of Yb3+-Yb3+ and Yb3+-Ce3+ energy transfer in Yb,Ce:CaGd4Si3O13 (Yb,Ce:CGS) crystals
被引:4
|作者:
Voroshilov, IV
[1
]
Lebedev, VA
[1
]
Gavrilenko, AN
[1
]
Ignatiev, BV
[1
]
Isaev, VA
[1
]
Shestakov, A
[1
]
机构:
[1] Kuban State Univ, Krasnodar, Russia
关键词:
D O I:
10.1088/0953-8984/12/12/101
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
The Yb radiative lifetime of 923 mu s has been determined by the extrapolation to the zero concentration of Yb. Quenching of the Yb luminescence is observed in the Yb3+,Ce3+:CaGd4Si3O13 (Yb,Ce:CGS) crystals due to their intrinsic defects and Ce3+ ions. The main quenching mechanism is the energy migration through Yb ions to the defects with a micro-parameter C-DD(Yb-Yb) = 1.0 x 10(-38) cm(6) s(-1), and the Yb3+ --> Ce3+ energy transfer with a micro-parameter C-DA = 5.5 x 10(-44) cm(6) s(-1).
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页码:L211 / L215
页数:5
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