| Autor: |
Zhao H, Wang R, Wang X, Jia S, Fan Y, Lewis E, Farrell G, Wang S, Wang P |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2020 Aug 01; Vol. 45 (15), pp. 4272-4275. |
| DOI: |
10.1364/OL.397653 |
| Abstrakt: |
Intense mid-infrared emission at 3.9 µm in H o 3+ -doped ZBYA glasses with direct upper laser level ( H o 3+ : 5 I 5 ) pumping at a wavelength of 888 nm is reported for the first time, to the best of our knowledge. Spectroscopic parameters were determined using the Judd-Ofelt theory and the measured absorption spectrum. The maximum emission cross section of the H o 3+ -doped ZBYA glass is estimated to be 2.7×10 -21 c m 2 at 3906 nm. Additionally, fluorescence spectra and lifetimes of ZBYA glasses with different H o 3+ ion doping concentrations were measured. The results provide theoretical and experimental basis for better selection of rare-earth-doped matrix glasses to achieve a fluorescence output centered on a wavelength of 3.9 µm. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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