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Pr3+ deactivation effect to Tm3+ at ∼1.5 μm emission in Bi4Ge3O12 crystals grown by the micro-pulling-down method.
- Source :
-
Journal of Luminescence . Jun2022, Vol. 246, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Tm3+, Pr3+ co-doped Bi 4 Ge 3 O 12 (Tm,Pr:BGO) crystals with various Pr3+ doping concentration were successfully grown using the micro-pulling-down (μ-PD) method. The use of Pr3+ co-doping for deactivating the Tm3+ ions at 1.5 μm emission was investigated in the BGO single crystal for the first time. The effect of Pr3+ concentration on the spectroscopic properties of Tm,Pr:BGO crystals were demonstrated. In addition, the fluorescence lifetime of Tm3+:3F 4 level of 0.5 at.% Pr, 2 at.% Tm:BGO crystal was quenched effectively (from 5.64 ms down to 0.36 ms) and the population inversions between Tm3+:3H 4 and 3F 4 levels are enhanced to achieve a four-level laser system at 1.5 μm. • Tm,Pr:BGO crystals with different Pr3+ concentration were grown using by the micro-pulling-down method. • The effect of Pr3+ concentration on the spectroscopic properties of Tm,Pr:BGO crystals was studied. • The use of Pr3+ co-doping for deactivating the Tm3+ ions at 1.5 μm emission was investigated in BGO crystal. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYSTALS
*SINGLE crystals
*LASER-induced fluorescence
*DOPING agents (Chemistry)
Subjects
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 246
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 156127588
- Full Text :
- https://doi.org/10.1016/j.jlumin.2022.118829