Thermal conductivity of doped YAG and GGG laser crystal
Thermal conductivity of doped YAG and GGG laser crystal
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DOI：
10.1007/s12200-008-0049-6
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发表时间：
2008-10
期刊：
影响因子：
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通讯作者：
Baosong Wang;Hai-he Jiang;Xiande Jia;Qingli Zhang;D. Sun;S. Yin
中科院分区：
文献类型：
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作者：
Baosong Wang;Hai-he Jiang;Xiande Jia;Qingli Zhang;D. Sun;S. Yin
为了研究不同掺杂YAG和GGG激光晶体的导热特性，采用瞬态测量法测量了不同掺杂YAG和GGG激光晶体在273-393 K温度下的热导率。建立了实验样品的温度场模型，导出了导热系数与温度的函数关系。得到的电导率-温度曲线与实验结果基本一致。实验结果表明，激光晶体的热导率随温度的升高而降低，YAG激光晶体的热导率随Yb离子掺杂浓度的增加而降低，GGG激光晶体的热导率随Nd离子掺杂浓度的增加而降低。最后对实验结果进行了理论解释。
To study the thermal conduction characteristics of different doped YAG and GGG laser crystals, the thermal conductivity of different doped YAG and GGG laser crystals generated at 273–393 K were measured by making use of instantaneous measurement method. The temperature field model of the experimental sample was established and the function of thermal conductivity to temperature was educed. The obtained conductivity to temperature curves almost conformed to the experimental results. The experimental results show that the thermal conductivity of the laser crystal decline with temperature, the thermal conductivity of YAG laser crystal declines when adding Yb ions, and the thermal conductivity of the GGG laser crystal declines with the rising of the doped Nd ions concentration. Finally, the experimental results were theoretically explained.