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中文摘要：
简述了改型Wollaston棱镜的偏光结构和分光机理;应用波法线追迹法分析了光在棱镜中的传播规律与波矢轨迹;推导出了任意入射面内、以任意角入射时光在棱镜中的传播方向及出射点坐标;给出了改型Wollaston棱镜中o光和e光光程差的理论表达公式;采用计算机模拟,给出了光程差随入射角、入射面与棱镜主截面的夹角、棱镜结构角及波长的变化曲线,并对其变化特性进行了深入的分析.该研究对偏光棱镜的理论研究具有普遍的指导意义,为偏振分光器件及干涉成像光谱仪的研制和应用提供了重要的理论依据和实践指导.
英文摘要：
The beam splitting and polarizing principle of modified Wollaston prism are presented. This paper analyses the propagation track of light wave in modified Wollaston prism by wave-normal-tracing method at random incidence angle and the formula of the path difference between e and o light waves are deduced. Computer simulations are carried out to give the curve of the optical path difference varying with incidence angle,incident azimuth angle,structural angle and wave length. The results will provide a theoretical basis for the study of polarization prisms and the development of polarization splitting apparatus.
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