提高反射型偏振器反射比的理论分析

用反射法产生偏振光是获取偏振光的方法之一,但反射比比较低.从介质膜的能量反射比R出发,探讨了在各向同性介质表面镀介质膜时,反射光为偏振光的条件.并通过分析表明：选择合适的介质膜材料,可以使反射比大大提高,从而优化反射型偏振器.

Theoretic Analysis to Increasing Reflectance of Reflection Polarimeter

Polarization will occur when light is reflected with an angle of incident equal to Brewster angle, and it is used to produce polarized light. The reflection is lower for polarization by using this method. On the basis of the reflectance R from a dielectric layer on an isotropy medium, the condition to produce polarization is discussed. It can be found that the reflection will be greatly increased, if an appropriate layer or multiplayer is deposited, which will be beneficial to the optimization of polarmeter.