Thermal diffusivity, conductivity and expansion of Yb_(3x)Y_(3(1-x))Al_5O_(12) (x = 0.05, 0.1 and 0.25) single crystals

摘要

Yb:YAG single crystals were grown by the Czochralski method. Thermal properties like thermal diffusivity, conductivity and expansion of various Yb~(3+) concentration are studied from 50 to 500℃. The effects of temperature and Yb~(3+) concentration on the thermal properties of Yb:YAG crystals are discussed. The deterioration of thermal properties of highly doped Yb:YAG is possibly due to the structural distortion caused by the Yb~(3+) ions.