在介质内表面处柱面波的反射和减反射
Cylindrical Wave Reflection and Antireflection at Media Interfaces
-
摘要: 应用转移矩阵法研究柱面介质内表面处柱面波的反射,发现在小半径内表面上的反射为全反射,当半径较大时,它只是部分反射.这种特性对于设计光源和小半径接收器有用.同时研究了柱面波的柱面多层减反射涂层,发现这些涂层不能应用通常的四分之一膜层设计,在此基础上叙述了新的设计原理.Abstract: A transfer-matrix method is used to study cylindrical wave reflection at cylindrical media interfaces. We find that the reflection can be total at an interface of small radius but is only partial if the radius is large. This feature is useful for designing optical sources and receivers of small radii. Cylindrical-wave multi-cylindrical-layer antireflection coatings are also studied. We find that conventional quarter-wavelength layer designs cannot be used for these coatings and new design principles are outlined.