Huygens' metasurface (HMS) can realize high-efficient real-time control of electromagnetic waves through impedance matching,which is specialty of multipoles. Previous designs of HMS mostly focus on realizing 27r phase coverage by combining different poles, while ignoring the limitation on transmittance ...
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 ...
JOURNAL OF L A T E X CLASS FILES, VOL. 14, NO. 8, AUGUST 2015 1Discrete Huygens’ Metasurface: RealizingAnomalous Refraction and Diffraction ModeCirculation with a Robust, Broadband and SimpleDesignChu Qi and Alex M. H. Wong, Senior Member, IEEEAbstract—Metasurfaces composed of subwavelength...
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...
it is tried to present a simple structure with easier implementation using Binary Huygens Metasurfaces (BHMs). In that article, using power flow analysis, it is shown that the designed BHM meets the necessary condition to have a perfect anomalous reflection. The introduced BHMs up to now17,18...
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-...
Metasurfaces enable a new paradigm to control electromagnetic waves by manipulating subwavelength artificial structures within just a fraction of wavelength. Despite the rapid growth, simultaneously achieving low‐dimensionality, high transmission efficiency, real‐time continuous reconfigurability, and a wide...
Experimental results confirm that the Huygens’ metasurface successfully generates an OAM vortex beam under a small F/D ratio of 0.43. The OAM generator has achieved high purity from 9.3 GHz to 10.5 GHz, which is more excellent than 0.95 in simulation and 0.87 in measurement, ...
However, due to the limitations of electrode wiring and unit structure efficiency, most existing active metasurface designs are reflective, hindering the further development of this field. Here, we propose an active induced magnetism Huygens' metasurface to overcome these limitations. We demonstrate that...