Premium
Fabrication, microstructure, and optical properties of Yb:Y 3 ScAl 4 O 12 transparent ceramics with different doping levels
Author(s) -
Feng Yagang,
Toci Guido,
Pirri Angela,
Patrizi Barbara,
Hu Zewang,
Wei Jiabei,
Pan Hongming,
Zhang Xing,
Li Xiaoying,
Su Sha,
Vannini Matteo,
Li Jiang
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.16691
Subject(s) - transparent ceramics , microstructure , materials science , ceramic , doping , sintering , ytterbium , fabrication , hot isostatic pressing , analytical chemistry (journal) , slope efficiency , mineralogy , laser , continuous wave , wavelength , optics , composite material , optoelectronics , fiber laser , chemistry , medicine , alternative medicine , physics , pathology , chromatography
Transparent Yb:Y 3 ScAl 4 O 12 (Yb:YSAG) ceramics with different ytterbium doping concentrations such as 5, 10, 15, 20 at.% have been successfully fabricated by solid‐state reactive sintering. All the obtained ceramics are in dense and homogeneous structure after sintering at 1820°C for 30 hours and with a posttreatment by hot isostatic pressing at 1750°C for 3 hours with 200 MPa pressure. We systematically analyzed the influence of Yb 3+ doping concentration on the microstructure and optical properties of the ceramics. The 10 at.% Yb:Y 3 ScAl 4 O 12 ceramics with a thickness of 3.2 mm show the best transparency as high as 80.9% at 1100 nm. The laser emission of the 10 at.% Yb:YSAG ceramics was tested, resulting in a maximum slope efficiency of 67.6% and a maximum output power of 11.3 W under quasi‐continuous wave pump conditions. The tuning range spanned from 990 to 1071 nm.