【摘要】 中频感应加热提拉法生长了低钕掺杂的GdVO₄晶体,用机械分析仪来测量Nd:GdVO₄晶体的热膨胀系数,沿c方向的热膨胀系数为7.42×10^-6/K,而沿α方向的热膨胀系数只有1.05×10^-6/K,比同比Nd_0.0045Y_0.9946VO₄晶体样品测量结果小。差示扫描热计法测量了Nd:GdVO₄晶体的比热,298K时为0.52J/g·K。首次用激光脉冲法测量了Nd:GdVO₄晶体的室温热导率。实验表明,Nd:GdVO₄晶体沿<001>方向的热导率数值达11.4W/m·K,比Nd:YAG晶体高（测得10.7W/m·K）,其<100>方向的热导率为10.1W/m·K。激光实验显示在较高功率泵浦激光输出上Nd:GdVO₄晶体具有比Nd:YVO₄晶体更加优良的性能。更多还原

【Abstract】 A new liquid-phase method synthesizing Nd: GdVO4 polycrystalline materials was introduced and high optical quality low Nd doped GdVO4 single crystals were successfully grown by the Czochralski method. The specific heat and the thermal expansion of the Nd:GdVO4 crystal were also introduced in this paper. The specific heat of the Nd: GdVO4 crystal was measured to be 0. 52J/g· K at 298K. The thermal expansion coefficient along < 100 > orientation is only about 1.05 × 10-6/K while that along < 001 > orientation is 7.42×10-6/K. The thermal conductivities of the Nd:GdVO4 crystal at 298K were measured by the laser pulse method. The value of the Nd = GdVO4 crystal along <001 > direction is 11.4W/m·K, which is higher than that of the Nd: YAG crystal measured to be 10.7W/m·K. Laser experiments have proved that the Nd: GdVO4 crystal has more excellent laser properties than the Nd: YVO4 crystal in the field of the comparative high-power laser.更多还原