Influences of the Sc3+ content on the microstructure and optical properties of 10 at.% Yb:Y3ScxAl5-xO12 laser ceramics

Year: 2020

Authors: Feng Y., Toci G., Pirri A., Patrizi B., Chen X., Wei J., Pan H., Zhang, X., Li X., Vannini M., Li J.

Autors Affiliation: Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China; Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China; CNR, INO, Via Madonna Piano 10C, I-50019 Sesto Fiorentino, FI, Italy; CNR, IFAC, Via Madonna Piano 10C, I-50019 Sesto Fiorentino, FI, Italy; Jiangsu Univ, Sch Mat Sci & Engn, 301 Xuefu Rd, Zhenjiang 212013, Jiangsu, Peoples R China.

Abstract: 10 at.% Yb:Y3ScxAl5-xO12 (x = 0.25, 0.5, 1.0 and 1.5) transparent ceramics have been successfully fabricated by the solid state reaction method combined with vacuum sintering, whose transmittances reach 80% at 1100 nm with thickness of 3.0 mm. The full width at half maximum (FWHM) of the emission peaks located at about 1030 nm increases for increasing the Sc3+ content, and a maximum FWHM of 14.53 nm is obtained for 10 at.% Yb:Y3Sc1.5Al3.5O12 ceramics, which is 1.4 times larger than that of the 10 at.% Yb:Y3Al5O12 (Yb:YAG) ceramics. Finally, the laser performance of the 10 at.% Yb:Y3Sc1.5Al3.5O12 ceramics was tested and compared with that of a standard 10 at.% Yb:YAG sample. In quasi continuous wave (QCW) regime, a maximum laser output power of 10.8 W was obtained with the slope efficiency of 66.4%. The tuning range significantly broadens in the case of the Yb:YSAG sample, reaching a width of 86.2 nm.

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Journal/Review: JOURNAL OF ALLOYS AND COMPOUNDS

Volume: 815      Pages from: 152637-1  to: 152637-9

More Information: This work was supported by the National Key R&D Program of China (Grant No. 2017YFB0310500), by the National Natural Science Foundation of China (Grant No. 61575212), by the Key research project of the frontier science of the Chinese Academy of Sciences (No. QYZDB-SSW-JSC022), and by the CNR Short Term Mobility Program 2017 (Prot. No. 0071950/2017).
KeyWords: Yb:Y3ScxAl5-xO12; Laser ceramics; Microstructure; Optical properties
DOI: 10.1016/j.jallcom.2019.152637

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Citations: 16
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