The influence of Sc3+ ions on fluorescence lifetime of Yb3+ in Yb- doped yttrium scandium aluminum garnet (Yb:YSAG) ceramics

We present the luminescence radiative lifetime data of Yb
³⁺
in Yb- doped yttrium scandium aluminum garnet (Yb:YSAG) ceramics at room temperature (300 K). The results show that the Yb
³⁺
lifetime changes significantly with content of Sc
³⁺
ion in Yb:YSAG and depends on the crystallography position occupied by Sc
³⁺
. The ceramics with the highest Sc
³⁺
content in octahedral position has longer luminescence radiative lifetimes.