线偏振光通过透明平板介质的强度分析  

Analysis on the Strength of Linear Polarized Light through Transparent Plate Medium

作　　者：万建杰[1] 鄢建军[1] 

机构地区：[1]西北师范大学物理与电子工程学院,甘肃兰州730070

出　　处：《盐城工学院学报（自然科学版）》2014年第2期1-6,共6页Journal of Yancheng Institute of Technology:Natural Science Edition

基　　金：国家自然科学基金青年项目(11204243);西北师范大学青年教师科研能力提升计划(NWNU-LKQN-10-7);西北师范大学"本科生学术能力提升计划"资助课题

摘　　要：光通过透明平板介质时会在其上下表面发生反射和折射现象。光的本质是电磁波,由于电磁波是横波,所以光具有偏振的特性,研究偏振光传播过程中振幅和强度的变化对分析偏振态的改变具有重要意义。以最简单的偏振光——线偏振光为例,利用菲涅耳公式对线偏振光入射透明平板介质后振幅和强度的变化进行了讨论。Reflection and refraction phenomenon take place at the top and bottom surfaces of the transparent plate when light cros- ses through it. Light is the electromagnetic wave essentially, which is transverse wave, so the light has polarization characteristic. The discussions on the changes of amplitude and strength in the propagation of polarized light play an important role in the analy sis of the change of polarization state. In this paper, as the simplest example, the changes of amplitude and strength of the linearly polarized light are discussed in detail by using the Fresnel formula.

关 键 词：透明平板介质 线偏振光 菲涅耳公式 

分 类 号：O435.1[机械工程—光学工程]