Preparation and spectroscopic properties of Yb:YAG glass-ceramics

摘要

Yb~(3+)-doped 32CaO-12Y_2O_3-24Al _2O_3-31SiO_2-1Yb_2O_3 glasses were prepared by melting method, and then annealed at 950°C, 1050°C and 1100°C, respectively. We analyzed the crystallographic structures of the glasses annealed at different temperatures by XRD, and observed the glass annealed at 1050°C by TEM. The spectroscopic properties of glass before and after annealing were also investigated. Results show that the glasses annealed at 1050°C are YAG glass-ceramics with no impurity crystalline phase. Variances in the spectroscopic properties before and after heat treatment indicate that Yb~(3+) ions were preferentially partitioned into the YAG crystal phase, and the transparent Yb:YAG glass-ceramics were obtained.