Nd∶GdVO_4激光晶体的光谱性质和热学性质  

Luminescence Properties and Thermal Properties of Nd∶GdVO_4 Laser Crystal

作　　者：赵朋[1] 夏海瑞[2] 秦连杰[3] 孟宪林[3] 

机构地区：[1]济南大学理学院物理系,济南250022 [2]山东大学物理与微电子学院,济南250100 [3]山东大学晶体材料国家重点实验室

出　　处：《人工晶体学报》2003年第3期237-241,共5页Journal of Synthetic Crystals

基　　金：国家自然科学面上基金 (No .10 2 740 43 );山东省自然科学基金 (Y2 0 0 1A0 6);攻关项目 ( 0 12 12 0 10 5 );山东大学晶体材料国家重点实验室资助项目

摘　　要：用提拉法生长了Nd∶GdVO4单晶 ,测量了其室温吸收谱和室温荧光谱 ,测量了其热扩散系数α和比热CP,从而得到了其热导率λ。可以看到Nd∶GdVO4晶体的吸收波长在 80 8nm附近 ,与已经商品化的GaAlAsLD的发射波长能很好地匹配 ,从而增加了吸收效率 ,并且Nd∶GdVO4晶体具有较高的热导率 ,有望在高功率的激光系统中获得应用。所以Nd∶GdVO4晶体是理想的激光材料。Nd∶GdVO 4 laser crystal was grown by the Czochralski technique.The absorption spectrum and fluorescence spectrum of Nd∶GdVO 4 crystal were measured at room temperature.The thermal diffusivity α and specific heat C P also were measured.Then we got the thermal conductivity λ of Nd∶GdVO 4 crystal.The results show that the absorption peak of Nd∶GdVO 4 crystal is at 808nm,which can be well matched to the emission wavelength of commercialized-GaAlAs LD,thus increasing absorption efficiency.Moreover,the laser properties of Nd∶GdVO 4 crystal may surpass that of Nd∶YVO 4 crystal in high power laser system due to the higher thermal conductivity of Nd∶GdVO 4crystal.So Nd∶GdVO 4 crystal is an excellent laser material.

关 键 词：ND:GDVO4晶体 激光晶体 光谱性质 热学性质 热导率 

分 类 号：O734[理学—晶体学] O736