Sm∶YCOB晶体生长及吸收光谱表征  

Growth and Absorption Spectra of Sm-doped YCOB Crystals

作　　者：涂一帆[1,2] 涂小牛[1] 熊开南[1,2] 郑燕青[1] 高攀[1] 施尔畏[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海201800 [2]中国科学院大学,北京100049

出　　处：《人工晶体学报》2013年第5期810-814,共5页Journal of Synthetic Crystals

基　　金：国家高技术研究发展计划(863计划)(2103AA031603)

摘　　要：采用熔体提拉法生长了高质量Sm3+掺杂YCa4O(BO3)3(YCOB)晶体。通过X射线粉末衍射、高分辨X射线衍射摇摆曲线、ICP-AES、吸收光谱等对晶体的性能进行了研究。发现生长的Sm∶YCOB晶体与YCOB晶体具有相同的结构,结晶质量较好,半高宽可达31弧秒;5at%浓度掺杂时Sm3+在YCOB晶体中分凝系数为0.773;晶体在1400～1600 nm范围内有若干较强的吸收峰。Sm-doped YCa4O(BO3)3(Sm∶ YCOB) single crystal with high quality were grown by Czochralski(Cz) method.The properties of crystal were characterized by X-ray powder diffraction,X-ray diffraction,ICP-AES,absorption spectra.The results showed that the as-grown crystal is isostructural with YCOB,and it is of high quality for the full width at half-maximum of XRD rocking curve is 31' ';the segregation coefficient of Sm3+ in this crystal is 0.773 with samarium concentration 5at%;the crystal has absorption peaks in the wavelength range from 1400 nm to 1600 nm.The results indicated that Sm∶ YCOB crystal could be used in OPCPA with strong idler absorption to improve the conversion efficiency.

关 键 词：Sm∶YCOB晶体 提拉法 吸收光谱 

分 类 号：O77[理学—晶体学]