Simultaneous Perfect Anomalous Reflection and Angle of Arrival Sensing in Reconfigurable Intelligent Surfaces
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Optical Materials"
DOI: 10.1002/adom.202403033
Abstract: This work introduces reconfigurable Intelligent surfaces (RISs) designed to simultaneously reflect single or multiple incident waves toward one or more receivers and sense their angles of arrival (AoA). Anomalous reflection with strongly suppressed parasitic scattering… read more here.
Keywords: perfect anomalous; simultaneous perfect; anomalous reflection; reconfigurable intelligent ... See more keywords
Gradient metasurface for four-direction anomalous reflection in terahertz
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.01.045
Abstract: Abstract In this paper, a four-direction anomalous reflection metasurface is proposed. The basic cells comprise of squares and circles, which are designed at various sizes and arranged in a super cell at regular spacing. Then,… read more here.
Keywords: anomalous reflection; direction anomalous; metasurface; reflection ... See more keywords
Simultaneous Realization of Anomalous Reflection and Transmission at Two Frequencies using Bi-functional Metasurfaces
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-20315-2
Abstract: The capability to manipulating electromagnetic (EM) waves at the sub-wavelength scale has been enabled by metamaterials and their two-dimensional counterparts, metasurfaces. Especially, integrating two or more diverse functionalities into a single metasurface-based device is of… read more here.
Keywords: transmission two; reflection transmission; anomalous reflection; metasurface ... See more keywords
Broadband terahertz metasurfaces for anomalous reflection and vortex beam generation
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Applied Physics"
DOI: 10.1063/5.0284232
Abstract: This paper presents a broadband terahertz (THz) meta-atom composed of copper and polyimide, capable of efficient wavefront modulation. By leveraging the Pancharatnam–Berry phase mechanism, the meta-atom achieves full 0–2π phase coverage across a wide frequency… read more here.
Keywords: broadband terahertz; generation; anomalous reflection; metasurfaces anomalous ... See more keywords
Experimental demonstration and in-depth investigation of analytically designed anomalous reflection metagratings
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.125101
Abstract: We present the design, fabrication, and experimental investigation of a printed circuit board metagrating (MG) for perfect anomalous reflection. The design follows our previously developed analytical formalism, resulting in a single-element MG capable of unitary… read more here.
Keywords: investigation; analytically designed; anomalous reflection; reflection ... See more keywords
All-Angle Scanning Perfect Anomalous Reflection by Using Passive Aperiodic Gratings
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2023.3329665
Abstract: Realizing continuous sweeping of perfect anomalous reflection in a wide angular range has become a technical challenge. This challenge cannot be overcome by the conventional aperiodic reflectarrays and periodic metasurfaces or metagratings. In this article,… read more here.
Keywords: perfect anomalous; anomalous reflection; scanning perfect; reflection ... See more keywords
Large asymmetric anomalous reflection in bilayer gradient metasurfaces.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.425987
Abstract: Gradient metasurfaces have attracted much attention due to intriguing wavefront and polarization manipulation. Here, a bilayer gradient metasurface is constructed by use of a rectangular nanorod layer and its complementary nanoaperture. It reveals asymmetric anomalous… read more here.
Keywords: bilayer gradient; anomalous reflection; reflection; gradient metasurfaces ... See more keywords
Broadband efficient anomalous reflection using an aggressively discretized metasurface.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.455617
Abstract: Aggressive discretization in metasurface design-using the least number of unit cells required-can dramatically decrease the phase coverage requirement, thus allowing the use of simple structure and avoiding unit cells with strong resonance, leading to a… read more here.
Keywords: discretized metasurface; metasurface; unit; aggressively discretized ... See more keywords
Light tunneling and anomalous reflection from the diffraction of complex annuli: modeling the forward light scattering by spherical particles.
Sign Up to like & getrecommendations! Published in 2025 at "Optics letters"
DOI: 10.1364/ol.557822
Abstract: Anomalous reflection and tunneling contributions of the high-frequency forward light scattering by non-absorbing spheres are modeled by the scalar diffraction of two complex annuli-one for TM and TE polarizations. Their complex radii, which depend on… read more here.
Keywords: light scattering; complex annuli; anomalous reflection; diffraction ... See more keywords
A Low-Profile and Ultra-Wideband Pancharatnam–Berry Coding Metasurface for High-Efficiency and Wide-Angle Circular Polarization Anomalous Reflection
Sign Up to like & getrecommendations! Published in 2024 at "Materials"
DOI: 10.3390/ma17194730
Abstract: The manipulation of electromagnetic waves using metasurfaces is important in areas such as stealth and communication. In this paper, we reported on the use of an element-based polarizer for the first step, which enables the… read more here.
Keywords: pancharatnam berry; polarization anomalous; anomalous reflection; circular polarization ... See more keywords