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Er3+-doped LuYSGG crystal as a potential 2.79 μm radiation-resistant laser material.
- Source :
-
Optics & Laser Technology . Aug2022, Vol. 152, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- • Influence of 60Co gamma-ray irradiation on the Er:LuYSGG crystal was demonstrated. • Maximum average output power of 886 mW is achieved after irradiation. • Maximum output power and slope efficiency are reduced by only 2.5% and 3.7%. • Lifetime ratio between lower and upper laser levels is reduced after irradiation. • Er:LuYSGG crystal is a potential 2.79 μm radiation-resistant laser material. We demonstrate the influence of gamma-ray irradiation on the structure, spectroscopies, and laser performance of Er:LuYSGG crystal. After 100 Mrad 60Co gamma-ray irradiation, the crystal structure remains unchanged, the absorption near 968 nm and emission within 2.7 ∼ 3 μm are almost unaffected, the level lifetimes are reduced, and the maximum output power of 886 mW is achieved with a maximum slope efficiency of 20.8%. The maximum output power and slope efficiency decrease by only 2.5% and 3.7% after irradiation, respectively, and the M 2 factor is little affected by irradiation. The results indicate that the Er:LuYSGG crystal is a potential mid-infrared radiation-resistant laser material applied in radiation environments. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LASERS
*CRYSTALS
*CRYSTAL structure
*RADIATION
*IRRADIATION
Subjects
Details
- Language :
- English
- ISSN :
- 00303992
- Volume :
- 152
- Database :
- Academic Search Index
- Journal :
- Optics & Laser Technology
- Publication Type :
- Academic Journal
- Accession number :
- 156713674
- Full Text :
- https://doi.org/10.1016/j.optlastec.2022.108121