有色方解石晶体的光谱分析  

Spectral analysis of colored calcite crystal

作　　者：王召兵[1] 刘涛[1] 郝殿中[1] 彭捍东[1] 张霞[1] 吴闻迪[1] 

机构地区：[1]曲阜师范大学激光研究所,曲阜273165

出　　处：《激光技术》2008年第6期596-597,604,共3页Laser Technology

摘　　要：为了更好地利用有色方解石晶体,采用X射线荧光光谱仪和X射线衍射仪等仪器对浅黄色和浅紫色方解石成分进行了测试分析,用分光光度计测试了黄色方解石的透射光谱。浅黄色方解石中含有微量的镁元素和锶元素,浅紫色方解石中含有微量的锰、锶和镁元素,有色方解石晶体偏光器件的消光比可达10-6量级。结果表明,有色方解石晶体偏光器件能满足一般光学测试系统的使用要求。In order to use colored calcite crystal suitably, chemical composition of lilac color calcite crystal and yellowish calcite crystal was tested with ALR 9400 X-ray fluorescence spectrometer and X-ray diffractometer respectively. Transmitted spectra of yellowish calcite crystal were measured with spectrophotometer. It is found that the yellowish calcite crystal contains trace element Mg and Sr, and the lilac color calcite crystal contains trace element Mn, Sr and Mg. Extinction ratio of colored calcite crystal polarizer can reach 10^-6. The results indicate that the polarizer can be used in optical measurement systems which don＇t need extreme high precision.

关 键 词：光谱学 方解石晶体 光谱分析 偏振器 

分 类 号：O433.4[机械工程—光学工程]