论文标题
使用bianisotropic metasurfaces的广义brewster效应
Generalized Brewster Effect using Bianisotropic Metasurfaces
论文作者
论文摘要
我们表明，适当设计的双异性跨表面放置在两个任意不同介质之间的界面上，或涂上暴露于空气的介电介质，可以任意角度和TM和TE极化为Brewster（无反射）传输。我们提出了基于广义板过渡条件（GSTC）的相应表面敏感性张量的严格推导，并用平面微波跨空面展示了用于极化无关和无方位的操作的平面微波跨面。此外，我们揭示了这样的系统会导致具有可行性能的有效屈光媒体的概念。所提出的双异构性元面积为最初不匹配的培养基提供了深层匹配的匹配解决方案，或者导致可能对常规菲涅尔系数进行按需操纵。报道的广义Brewster效应代表了光学技术的基本进步，它既可以改善常规组件的性能，又可以使新设备的开发。
We show that a properly designed bianisotropic metasurface placed at the interface between two arbitrary different media, or coating a dielectric medium exposed to the air, provides Brewster (reflectionless) transmission at arbitrary angles and for both the TM and TE polarizations. We present a rigorous derivation of the corresponding surface susceptibility tensors based on the Generalized Sheet Transition Conditions (GSTCs), and demonstrate the system with planar microwave metasurfaces designed for polarization-independent and azimuth-independent operations. Moreover, we reveal that such a system leads to the concept of effective refractive media with engineerable impedance. The proposed bianisotropic metasurfaces provide deeply subwavelength matching solutions for initially mismatched media, and alternatively lead to the possibility of on-demand manipulation of the conventional Fresnel coefficients. The reported generalized Brewster effect represents a fundamental advance in optical technology, where it may both improve the performance of conventional components and enable the development of novel devices.
