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

Abstract

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.

References in corpus (4)

• Coherent Perfect Absorbers: Time-reversed Lasers
• Giant gyrotropy due to electromagnetic coupling
• Planar wallpaper group metamaterial for novel terahertz applications
• Creating double negative index materials using the Babinet principle with one metasurface

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• Quasi-Babinet principle in dielectric resonators and Mie voids
• Structure and Symmetry in Coherent Perfect Polarization Rotation
• Energy loss of terahertz electromagnetic waves by nano-sized connections in near-self-complementary metallic checkerboard patterns
• Departure from Babinet principle in metasurfaces supported by subwavelength dielectric slabs
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