摘要
Thermal properties of pure KY（WO4）2 and K（Y1-xYbx）（WO4）2（x=0.098,0.196,0.294） crystals were investigated.The specific heat and thermal diffusivity of crystals were calculated at a range of 50～300 ℃.The calculated result shows that the specific heat and thermal diffusivity of K（Y1-xYbx）（WO4）2（x=0.098,0.196,0.294） crystals were slightly affected by the Yb3＋ concentration.The thermal expansion coefficient of K（Y0.804Yb0.196）（WO4）2 crystals along x,y and z axes were determined to be 13.51,4.474 and 16.60×10-6 K^-1,respectively. These results suggest the K（Y1-xYbx）（WrO4）2 （x = 0.098, 0.196, 0.294） crystal as a laser crystal of low-middle power.
Thermal properties of pure KY（WO4）2 and K（Y1-xYbx）（WO4）2（x=0.098,0.196,0.294） crystals were investigated.The specific heat and thermal diffusivity of crystals were calculated at a range of 50～300 ℃.The calculated result shows that the specific heat and thermal diffusivity of K（Y1-xYbx）（WO4）2（x=0.098,0.196,0.294） crystals were slightly affected by the Yb3＋ concentration.The thermal expansion coefficient of K（Y0.804Yb0.196）（WO4）2 crystals along x,y and z axes were determined to be 13.51,4.474 and 16.60×10-6 K^-1,respectively. These results suggest the K（Y1-xYbx）（WrO4）2 （x = 0.098, 0.196, 0.294） crystal as a laser crystal of low-middle power.
基金
supported by the National Natural Science Foundation of China (No 60778035)
the Special Project of Jiangsu University for Young Scientist (No 1283000287)
