摘要
《晶体光学》是地质学、地球化学、资源勘查工程等专业的主干课程之一,利用偏光显微镜鉴定法鉴定透明矿物和岩石是地质专业所必须掌握的技能。文章分别利用光振幅矢量分解、偏振光的干涉以及半波片的特性等方法详细分析了矿片在45°位置时视域最亮的原因,以便学生更好的理解偏光显微镜下矿片的光学现象。
Crystal optics is one of the major courses in geology,geochemistry and resource exploration engineering.Identification of transparent minerals and rocks using polarizing microscope is a necessary skill for the students of geological majors.In this paper,we analyze the reason why the intensity of light is maximum when the ore sheet at 45°position,using the methods of optical amplitude vector decomposition,interference of polarized light and the characteristics of half-wave plate respectively.This may help the students to understand the optical phenomenon of ore sheet in polarizing microscope.
引文
[1]姚启钧.光学教程[M].北京:高等教育出版社,2002.
[2]李德惠.晶体光学[M].北京:地质出版社,1997.