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Growth and characterization of the new laser crystal Nd:LuVO_4

机译:新型激光晶体Nd:LuVO_4的生长与表征

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摘要

The growth, thermal properties, Mohs hardness, density and laser properties of a new laser crystal Nd:LuVO_4 are reported. Nd:LuVO_4 crystal belongs to tetragonal system and its cell parameter was calculated: a = 7.0275, c = 6.2507 A. The measured thermal expansion coefficient are α_a = 1.7 x 10~(-6), α_b = 1.5 x 10~(-6), α_c = 9.1 x 10~(-6)/K from 50 to 300℃ along its crystallographic axes respectively. The measured specific heat value is 0.45 J g~(-1)K~(-1) at 330 K. The highest output power at 1.064 μm is 530 mW at the pumping power of 2.76 W of a laser diode (LD), slope efficiency is 23.1%, and the optical-optical conversion efficiency is 19.3%. The theoretical density of LuVO_4 and measured density of Nd:LuVO_4 are 6.260 and 6.233 g/cm~3, respectively. And its Mohs hardness is measured to be approximately 6. All these properties show Nd:LuVO_4 is crystal can be used for efficient LD pump lasers system.
机译:报告了一种新型激光晶体Nd:LuVO_4的生长,热性能,莫氏硬度,密度和激光性能。 Nd:LuVO_4晶体属于四方晶系,其晶胞参数经计算:a = 7.0275,c = 6.2507A。测得的热膨胀系数为α_a= 1.7 x 10〜(-6),α_b= 1.5 x 10〜(-6) ),从50到300℃沿其晶轴的α_c= 9.1 x 10〜(-6)/ K。在330 K时测得的比热值为0.45 J g〜(-1)K〜(-1)。在激光二极管(LD)的泵浦功率为2.76 W,斜率为1.064μm时,最高输出功率为530 mW。效率为23.1%,光-光转换效率为19.3%。 LuVO_4的理论密度和Nd:LuVO_4的测量密度分别为6.260和6.233 g / cm〜3。测得其莫氏硬度约为6。所有这些特性表明Nd:LuVO_4是晶体,可用于高效LD泵浦激光器系统。

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