Metasurfaces composed of ultrathin metallic or dielectric nanostructures with subwavelength size and spacing1,2,3,4that are able to fully control the electromagnetic wavefront have recently been developed for m
Design of multilayered unit-cell for chiral metasurface Figure3illustrates the unit-cell design comprising of three metallic layers sandwiched together by two dielectric substrates and a prepreg, forming a multi-layered structure. The top and bottom metallic layers are90∘rotated and mirrored versions...
Plasmonic metasurface absorberIn this paper, we present a plasmonic chiral metasurface absorber (CMSA), which can achieve high selective absorption for right-handed and left-handed circular polarization (RCP, "+", and LCP, "") lights at optical frequency. The CMSA is composed of a dielectric ...
Hybrid bilayer complementary metasurfacesNon-chiral metasurfacesField enhancementAsymmetric optical responses of photonic systems for forward and backward incidences are of great importance for practical applications. In this work, we theoretically demonstrate second-harmonic generation (SHG) with high contrast...
Microwave integrated circuits,Millimeter wave devices,Microwave devices,Metasurfaces,Numerical models,Microwave FET integrated circuits,Optical devicesIn this work, a novel bilayer chiral metasurface is proposed to realize efficient asymmetric transmission and unidirectional polarization conversion. The structure ...
interferometric method to analyze the polarizations based on a tri-channel chiral metasurface. A deep convolutional neural network is also incorporated to enable fast, robust and accurate polarimetry. Spatially uniform and nonuniform polarizations are both measured through the metasurface experimentally. Di...
These results prove that the 2 by 2 bilayer crescent chiral metasurface can be tailored to a fine degree for specific applications such as improved biosensing, enhanced optical communications, and precise polarization control by optimizing the configuration. The insight presented by this theoretical and...