Emission properties of Nd3+ in several fluoride crystals

被引：9

作者：

Belsky, AN

Chevallier, P

Gesland, JY

Kirikova, NY

Krupa, JC

Makhov, VN

Martin, P

Orekhanov, PA

Queffelec, M

机构：

[1] PN LEBEDEV PHYS INST,MOSCOW 117924,RUSSIA

[2] MOSCOW MV LOMONOSOV STATE UNIV,DEPT PHYS,MOSCOW 117234,RUSSIA

[3] CTR UNIV PARIS SUD,LURE,F-91405 ORSAY,FRANCE

[4] INST PHYS NUCL,F-91406 ORSAY,FRANCE

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷

关键词：

rare earths; fluoride crystals; 5d-4f transitions; energy transfer;

D O I：

10.1016/S0022-2313(96)00160-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Decay kinetics of 4f(2)5d state of Nd3+ is very fast (tau similar to 1 ns) in NdF3 where concentration quenching of Nd3+ emission is observed. It is near-exponential in YF3-Nd, where relatively weak quenching of emission takes place at high-energy excitation. It shows distinct rise time in LiYF4-Nd where the delayed energy transfer to emission centers is observed. The latter starts at excitation energies higher than the energy of intrinsic absorption edge of the matrix and disappears at low temperature. The model for the mechanism of the delayed energy transfer in LiYF4-Nd is proposed.

引用

页码：146 / 148

页数：3

共 6 条

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