Abstract
AbstractYb3+‐doped Lu3Al5O12 (Yb:LuAG) transparent ceramics were fabricated by vacuum sintering and hot isostatic pressing(HIP) method. TEOS and Sc2O3 were added as sintering aids by a high energy ball milling. Transparent nearly‐fully dense samples with grain size of about tens of micrometers were obtained after 1820 °C sintering, while the grain size of HIP sample was only about several micrometers. The absorption spectra, emission spectra, and fluorescence life time of these transparent Yb:LuAG ceramics at room temperature have were measuredd. The absorption and emission cross‐section of Yb:LuAG Ceramics at 937 nm and 1030 nm were 7.6×10–21 and 23×10–21cm2 which are much higher than those of Yb:YAG crystal. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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