Generalized Brewster effect using bianisotropic metasurfaces

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 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 and demonstrate by full-wave simulations the system with planar microwave metasurfaces designed for polarization-independent and azimuth-independent operations. The proposed bianisotropic metasurfaces provide deeply subwavelength matching solutions for initially mismatched media. 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. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Automated summary

This study demonstrates that a properly designed bianisotropic metasurface can achieve Brewster transmission at arbitrary angles, providing a deeply subwavelength matching solution for initially mismatched media. The reported generalized Brewster effect represents a significant advancement in optical technology, with the potential to improve the performance of conventional components and facilitate the development of novel devices.