Fabrication and laser oscillation of Yb:Sc.sub.2./sub.O.sub.3./sub. transparent ceramics from co-precipitated nano-powders

0499459 - FZÚ 2019 RIV GB eng J - Článek v odborném periodiku
Dai, Z. - Liu, Q. - Toci, G. - Vannini, M. - Pirri, A. - Babin, Vladimir - Nikl, Martin - Wang, W. - Chen, H. - Li, J.
Fabrication and laser oscillation of Yb:Sc₂O₃ transparent ceramics from co-precipitated nano-powders.
Journal of the European Ceramic Society. Roč. 38, č. 4 (2018), s. 1632-1638. ISSN 0955-2219. E-ISSN 1873-619X
Institucionální podpora: RVO:68378271
Klíčová slova: Yb:Sc2O3 * transparent ceramics * fabrication * laser performance * co-precipitated nano-powders
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 4.029, rok: 2018

Ytterbium doped scandium oxide (Yb:Sc2O3) transparent ceramics were fabricated by a co-precipitation and vacuum sintering method. The characteristics of the precursor and the calcined powders were investigated by BET, XRD, and SEM. Ultra-fine and low agglomerated 5at%Yb:Sc2O3 powders with the average particle size about 65.4 nm were obtained after calcined at 1100 °C for 5 h. Using the synthesized powders as starting materials, 5at%Yb:Sc2O3 transparent ceramics with the in-line transmittance of 71.1% at 1100 nm and average grain size of 145 μm were fabricated by vacuum sintering at 1825 °C for 10 h. Quasi-CW laser oscillation of Yb:Sc2O3 ceramics was obtained at 1040.6 nm. A maximum output power as high as 2.44 W with a corresponding slope of 35% was achieved. Finally, the tunability of the ceramic was explored measuring a tuning range up to 55 nm.
Trvalý link: http://hdl.handle.net/11104/0291833