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Enhanced 2.7 μm continuous-wave emission of Er,Pr:Lu2O3 crystal.
- Source :
-
Journal of Luminescence . Aug2020, Vol. 224, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- The high optical quality Er:Lu 2 O 3 and Er,Pr:Lu 2 O 3 crystals were grown by Floating zone method. The spectral properties of Er:Lu 2 O 3 and Er,Pr:Lu 2 O 3 crystals were investigated. After co-doping small concentration of Pr3+, the depopulated influence of Pr3+ to the NIR emission was much stronger than the MIR emission. The near-infrared and up-conversion fluorescence were significantly quenched. Moreover, the fluorescence lifetime of 4I 13/2 abviously decreases from 4.02 ms to 1.71 ms in 7% Er, 0.05% Pr: Lu 2 O 3 crystal, and the lifetime ratio is 1.63 with large fluorescence lifetime of 4I 11/2 which is desirable lifetime ratio in these crystals. Thus, the spectral performance was significantly improved by co-doping 0.05 at.% of Pr3+. The high laser performance at 2.7 μm of 7% Er, 0.05% Pr: Lu 2 O 3 crystal is expectable. • The high optical quality Er:Lu 2 O 3 and Er,Pr:Lu 2 O 3 crystals were firstly grown by Floating zone method. • The spectral properties of Er:Lu 2 O 3 and Er,Pr:Lu 2 O 3 crystals were firstly investigated. • After co-doping low concentration of Pr3+, the near-infrared, ESA and up-conversion fluorescence were significantly quenched. • The spectral performance of Er:Lu 2 O 3 crystal was significantly improved at 2.7 μm by co-doping 0.05 at.% of Pr3+. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYSTALS
*FLUORESCENCE
*LASERS
Subjects
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 224
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 143701179
- Full Text :
- https://doi.org/10.1016/j.jlumin.2020.117094