With the dyadic Green function and coupled-dipole approach, a Huygens' metasurface is obtained by two d.imensional array of subwavelength Ag core-Si shell nanoparticles, the transmission efficiency is close to unity in a broadband spectrum, and the reflection is completely eliminated by spectrally...
Here, a multiphase hologram with Huygens metasurface is demonstrated in microwave regime, and a novel algorithm method is proposed to modulate energy distribution among focal points. The proof‐of‐concept experiments show superior microwave holographic images with 89% transmittance efficiency, 59% ...
Optical metasurfaces have developed as a breakthrough concept for advanced wave-front engineering enabled by subwavelength resonant nanostructures. However, reflection and/or absorption losses as well as low polarisation-conversion efficiencies pose a fundamental obstacle for achieving high transmission ...
Huygens metasurface is a planar array of crossed electric and magnetic dipoles, which provide specific surface current to tailor the electromagnetic field distribution. By changing the geometrical parameters of the proposed unit cell, the manipulation range of reflection phase can achieve 2π, while the...
Polarizable Particles and their Two-Dimensional Arrays: Advances in Small Antenna and Metasurface Technologies Metamaterial Huygens' surfaces utilize polarizable particles that exhibit both an electric and magnetic response, which allows for reflectionless wavefront control... CR Pfeiffer 被引量: 0发表: 20...
We propose a Huygens source unit cell to develop an ultrathin low-reflection metasurface, which could provide extreme controls of phases of the transmitted waves. Both electric and magnetic currents are supported by the proposed unit cell, thus leading to highly efficient and full controls of phase...
Fig. 1. Selected functionalities of metasurfaces: (a) bandpass frequency selective surface; (b) bandstop frequency selective surface; (c) high-impedance surface; (d) narrowband perfect absorber; (e) twist polarizer; (f) right-handed circular-polarization frequency selective surface; (g) linear-to...
Here we theoretically analyzed and experimentally realized a Huygens metasurface platform capable of fulfilling a diverse cross-section of optical functions in the mid-IR. The meta-optical elements were constructed using high-index chalcogenide films deposited on fluoride substrates: the choices of wide-...
A rigorous Floquet mode analysis is proposed for a zero thickness space-time modulated Huygens' metasurface to model and determine the strengths of the new harmonic components of the scattered fields. The proposed method is based on Generalized Sheet Transition Conditions (GSTCs) treating a metasurfa...
This paper investigates the retroreflective properties of a type of periodic metasurface, which is aggressively discretized to include only two cells per grating period. The resultant metasurface, which we term the binary Huygens' metasurface, dramatically simplifies the design toward highly efficient, lo...