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• 研究论文 • 上一篇    下一篇

Nd3+:Gd3Ga5O12晶体的热物理性能研究

王召兵1,2,4, 蔡岸3, 奚同庚3, 张庆礼1, 孙敦陆1, 殷绍唐1   

  1. 1. 中国科学院安徽光学精密机械研究所, 合肥 230031; 2. 曲阜师范大学激光所, 曲阜 273165; 3. 中国科学院上海硅酸盐研究所, 上海 200050; 4. 中国科学院研究生院, 北京 100049

  • 收稿日期:2006-03-09 修回日期:2006-03-30 出版日期:2007-01-20 网络出版日期:2007-01-20

Thermophysical Properties of Nd3+:Gd3Ga5O12 Crystal

WANG Zhao-Bing1,2,4, CAI An3, XI Tong-Geng3, ZHANG Qing-Li1, SUN Dun-Lu1, YIN Shao-Tang1   

  1. 1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 2. Laser Research Institute of Qufu Normal University, Qufu 273165, China; 3. Shanghai Institute of Ceramics, Chinese Academy of
    Sciences, Shanghai 200050, China; 4. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2006-03-09 Revised:2006-03-30 Published:2007-01-20 Online:2007-01-20

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摘要： 提拉法生长了Nd3+:Gd3Ga5O12(Nd:GGG) 单晶, 用差示扫描量热法(DSC)和激光脉冲法分别测量了Nd:GGG激光晶体的比热和热扩散系数, 计算得到晶体的导热系数, 与用PPMS测量得到的导热系数相吻合. 实验结果表明: Nd:GGG激光晶体具有较大的比热和导热系数, 具有良好的热物理性能; Nd:GGG晶体的热扩散系数和导热系数随着温度的升高而减小; 计算得到晶体的德拜温度为711K.

关键词: Nd:GGG晶体, 比热, 热扩散系数, 导热系数

Abstract: Nd3+:Gd3Ga5O12 (Nd:GGG) single crystals were grown by the Czochraski method. Specific heat and thermal diffusivity of Nd:GGG single crystals were measured with differential scanning calorimetry and laser flash methods, respectively. The thermal conductivity of Nd:GGG was calculated, and consistent with the thermal conductivity measured with PPMS. The experimental results indicate that Nd:GGG single crystal has good thermal properties such as high specific heat and thermal conductivity. Thermal diffusivity and thermal conductivity of Nd:GGG single crystal vary with temperature. The higher temperature is, the lower thermal diffusivity and the thermal conductivity are. The Debye temperature of Nd:GGG is 711K.

Key words: Nd:GGG crystal, specific heat, thermal diffusivity, thermal conductivity

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