大学物理 ›› 2011, Vol. 30 ›› Issue (7): 28-28.

• 著者文摘 • 上一篇    下一篇

对白光干涉法测量透明介质折射率实验的探讨

皇甫国庆   

  1. 渭南师范学院物理与电子工程系,陕西渭南714000
  • 出版日期:2011-07-25 发布日期:2011-07-20

Discussion on experiment of white light interference measured transparent medium refractive index

  • Online:2011-07-25 Published:2011-07-20

摘要: 在时域中求解得到,光路中存在色散介质的情况下,白光双光束干涉光强度.由此证明了:用白光干涉法测量得到的是白光在色散介质中的群折射率,而并非相关报道中认为的折射率;讨论了介质厚度及色散对干涉条纹的可见度和干涉条纹显现时动镜移动范围的影响.上述结论得到了实验验证.

关键词: 迈克耳孙干涉仪, 白光干涉, 色散, 群折射率

Abstract: Double-beam interference phenomenon of white light source is discussed in the case of dispersion medium in optical path.This conclusion can be used to explain the abnormal phenomenon of the experiment of that Michelson interferometer measured transparent medium refractive index,we obtain the results coinciding with the experimental ones and correct the mistake in the correlative reports.

Key words: Michelson interferometer, white light interference, dispersion, group refractive index

中图分类号: 

  • O436.1