阐述了利用非均匀膜系理论设计宽角度多层减反射薄膜的方法,从理论上分析了在宽角度的情况下,偏振光产生透过率不同的原因,选取了Ta2O5和SiO2两种材料作为折射率材料,选取BK7作为基底材料模拟设计了光谱区在600～700 nm波段、入射角为0°～80°之间的宽角度多层减反射薄膜,探索出了一条新型膜系设计的途径,其优化结果是较为理想的。这一研究方法如能在太阳能、光纤通信、航天、激光等领域应用,将大大地提高光能的利用率,具有重要的应用价值。

A method of designing antireflection multilayer using the theory of inhomogeneous coatings was presented. The cause of difference of transmittance is analysed by polarized light and in the case of incidence at wide angle. Antireflection multilayer of 500～600 nm at incidence angle from 0° to 80° have been designed using Ta2O5 and SiO2 as materials of refractive index of smultilayer, using BK7 as material of substrate. A new way of film design has been explored. It shows the result of optimization is perfect. This method can increase the ratio of utilization of optical energy, and it can find the applications in the fields of solar energy, optical fiber communication, aerospace industry, laser and so on.