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 ...
In this paper, we present a plasmonic chiral metasurface absorber (CMSA), which can achieve the 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 substrate sandwiched with...
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...
The high circular dichroism in transmission and large cross-polarization ratio in the transmitted light of the stepped nanoaperture are attributed to the nanoaperture’s 3D bilayer structure, which opens a new avenue for designing easy-to-fabricate chiral metasurfaces, spin-dependent wave plates, ...
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...
dielectric substrate are connected via metallization holes. Obviously, all the unit cells of the designed CMM are interconnected. The geometrical parameters of the unit cells are as follows:ax = ay = 2a = 6 mm,b = 1.3 mm,d = 0.6 mm,g = 0.3 mm,l = ...
Chiral Bilayer All-Dielectric Metasurfaces. ACS Nano 2020, 14, 15926–15935. [Google Scholar] [CrossRef] Yang, S.; Liu, Z.; Hu, S.; Jin, A.Z.; Yang, H.; Zhang, S.; Li, J.; Gu, C. Spin-Selective Transmission in Chiral Folded Metasurfaces. Nano Lett. 2019, 19, 3432–3439...
Guo et al. [48] proposed an all-dielectric metasurface that can measure refractive index and temperature, which consists of silicon disks with tilted split gap, and they found that breaking the symmetry properties enables them to transform the symmetric protected bound state (BIC) into toroidal ...
conspicuously high Q-factors. Most previous works on chiral quasi-BICs in all-dielectric metasurfaces broke in-plane inversion symmetry photonic systems [5,8,9,10], while mirror symmetry was broken in this work. Characterized by broken mirror symmetry, chiral metasurfaces [9,11,12] and ...