. Plane-wave scattering by self-complementary metasurfaces in terms of electromagnetic duality and Babinet's principle

Article

关键词: THIN METAL-FILMS;    PERCOLATION-THRESHOLD;    OPTICAL-PROPERTIES;    HOLE ARRAYS;    GOLD-FILMS;    METAMATERIALS;    FIELD;    ELECTRODYNAMICS;    TRANSMITTANCE;    REFRACTION;   

DOI  :  10.1103/PhysRevB.88.205138

来源: SCIE

【 摘 要 】

We investigate theoretically electromagnetic plane-wave scattering by self-complementary metasurfaces. By using Babinet's principle extended to metasurfaces with resistive elements, we show that the frequency-independent transmission and reflection are realized for normal incidence of a circularly polarized plane wave onto a self-complementary metasurface, even if there is diffraction. Next, we consider two special classes of self-complementary metasurfaces. We show that self-complementary metasurfaces with rotational symmetry can act as coherent perfect absorbers, and those with translational symmetry compatible with their self-complementarity can split the incident power equally, even for oblique incidences.

【 授权许可】

Free