利用光强透射率测定透明介质的折射率

摘要

利用光在两种介质分界面上能流分配及偏振态变化的行为，推导了各向同性单层介质在线偏振光入射下的光强透射率与介质折射率之间的关系，从而给出了基于线偏振光透射率测量透明介质折射率的原理。实验结果表明，得到的介质折射率与理论值相符，所采取的实验方案可行。%When light enters another medium ,at the surface ,the behaviors of polarization state and energy distribution would be change .This article deduces the relationship between the refractive index of the isotropic single - layer medium and the optical transmissivity of linear polarized ,thus we get the method of measuring refractive index of transparent medium .The experiment result shows that the refractive index of the medium is consistent with the theoretical value ,which proves the experiment scheme is feasible .