大学物理 ›› 2016, Vol. 35 ›› Issue (11): 52-56.doi: 10.16854/j.cnki.1000-0712.2016.0167

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迈克耳孙干涉仪测折射率时的异常现象研究

南 阳1,熊 畅2,唐 芳2,李朝荣2   

  1. 1. 北京航空航天大学材料科学与工程学院,北京 100191;   2. 北京航空航天大学物理科学与核能工程学院,北京 100191
  • 收稿日期:2015-12-30 修回日期:2016-05-04 出版日期:2016-11-20 发布日期:2016-11-20
  • 通讯作者: 熊畅,Email:xiongchang1821@ 163.com
  • 作者简介:南阳(1994—),男,江西樟树市人,北京航空航天大学材料科学与工程学院2013 级本科生.
  • 基金资助:
    北京航空航天大学重大教改项目资助

The abnormal phenomenon of measuring refractive index with Michelson interferometer

NAN Yang1,XIONG Chang2,TANG Fang2,LI Chaorong2   

  1. 1. School of Material Science and Engineering,Beihang University,Beijing 100191,China;   2. School of Physics and Nuclear Energy Engineering,Beihang University,Beijing 100191,China
  • Received:2015-12-30 Revised:2016-05-04 Online:2016-11-20 Published:2016-11-20
  • Supported by:
     

摘要: 针对迈克耳孙干涉仪以激光为光源测量玻璃板折射率所产生的异常现象,本文从几何光学理论出发进行了讨论,简明直观地给出了干涉条纹吞吐转折点与零光程点、光程、虚光源相对位置之间的关系,并与实验数据进行了对比.

关键词: 迈克耳孙干涉仪, 吞吐转折点, 折射率, 几何光学, 虚光源

Abstract: While Michelson interferometer and laser are used to measure the refractive index of glass pane,there is an abnormal phenomenon. When we put a glass pane into one side of the light path,we observe an abnormal phenomenon of equal inclination inference rings puff. In this letter,we analyze the phenomenon in terms of geometrical optics and make clear the relationship between the turning point of interference fringe,zero light path difference and the relative location of virtual light sources. We also perform comparative analysis with experimental data.

Key words: Michelson interferometer, turning point of interference fringe, refractive index, geometrical optics, virtual light source

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