Anomalously Perfect Reflections Based on 3‐Bit Coding Metasurfaces
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Optical Materials"
DOI: 10.1002/adom.201801742
Abstract: Herein, a new design method to realize anomalously perfect reflections based on digital coding metasurfaces is proposed. Previous studies on perfect reflections usually rely on impedance matching, which requires complicated analyses and calculations. Based on… read more here.
Keywords: anomalously perfect; digital coding; perfect reflections; coding metasurfaces ... See more keywords
Enhanced Broadband Manipulation of Acoustic Vortex Beams Using 3-bit Coding Metasurfaces through Topological Optimization.
Sign Up to like & getrecommendations! Published in 2024 at "Small"
DOI: 10.1002/smll.202308349
Abstract: The acoustic coding metasurfaces (ACMs) have the ability to manipulate complex acoustic behavior by reconstructing the coding sequence. In particular, the design of broadband coding enhances the versatility of ACMs. ACMs offer significant advantages over… read more here.
Keywords: coding metasurfaces; broadband; acoustic vortex; bit coding ... See more keywords
On the use of autocorrelation properties for diffuse reflection by coding metasurfaces
Sign Up to like & getrecommendations! Published in 2024 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s1759078724001168
Abstract: One-bit coding metasurfaces combine two basic unit cells with out-of-phase responses. Their potential in achieving diffuse scattering has already been demonstrated. These metasurfaces can subsequently be applied to radar-signature control. This paper presents a theoretical… read more here.
Keywords: use autocorrelation; autocorrelation; diffuse reflection; properties diffuse ... See more keywords
Space-time-coding digital metasurfaces
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-06802-0
Abstract: The recently proposed digital coding metasurfaces make it possible to control electromagnetic (EM) waves in real time, and allow the implementation of many different functionalities in a programmable way. However, current configurations are only space-encoded,… read more here.
Keywords: digital coding; space; space time; time ... See more keywords
Efficient manipulation of terahertz waves by multi-bit coding metasurfaces and further applications of such metasurfaces
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics B"
DOI: 10.1088/1674-1056/abd6fc
Abstract: Benefiting from the unprecedented superiority of coding metasurfaces at manipulating electromagnetic waves in the microwave band, in this paper, we use the Pancharatnam-Berry (PB) phase concept to propose a high-efficiency reflective-type coding metasurface that can… read more here.
Keywords: manipulation terahertz; bit coding; coding metasurfaces; terahertz waves ... See more keywords
Wavefront Control of 2D Curved Coding Metasurfaces Based on Extended Array Theory
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2905656
Abstract: We extend the array theory to design 2D curved coding metasurfaces in order to achieve arbitrary wavefront control. The extended array theory establishes the relationship between wavefront and curved-surface, which provides a simple and effective… read more here.
Keywords: array; curved coding; wavefront control; array theory ... See more keywords
Broadband tunable coding metasurfaces based on a metal patch and graphene for beam control at the terahertz frequencies.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.459343
Abstract: We present a broadband tunable coding metasurfaces structure using a cruciate metal patch and circular graphene on a multilayer substrate. By changing the Fermi level of the graphene, we can achieve obvious reflection phase variation… read more here.
Keywords: graphene; beam; control; bit coding ... See more keywords
Manipulation of sub-terahertz waves using digital coding metasurfaces based on liquid crystals.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.486146
Abstract: This paper presents a novel sub-terahertz liquid crystal (LC) phase shifter based on digital coding metasurfaces. The proposed structure consists of metal gratings and resonant structures. They are both immersed in LC. The metal gratings… read more here.
Keywords: digital coding; phase shifter; coding metasurfaces; sub terahertz ... See more keywords
Optimal array design of deficient coding metasurfaces for terahertz beam steering via phase-gradient approaching.
Sign Up to like & getrecommendations! Published in 2025 at "Optics express"
DOI: 10.1364/oe.558331
Abstract: Confronted with the low reconfigurability of switches and materials with continuously tunable refractive indices, terahertz active coding metasurfaces suffer from narrow phase shift ranges and low quantization precision. To address the consequent terahertz beam-steering deterioration,… read more here.
Keywords: gradient approaching; phase gradient; beam steering; coding metasurfaces ... See more keywords
Hilbert-Coding Metasurface for Diverse Electromagnetic Controls
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15175913
Abstract: Metamaterials, or metasurfaces, allow the flexible and efficient manipulation of electromagnetic (EM) wave. Although the passive coding metasurfaces have achieved a great deal of functionality, they also need a complex design process. In this paper,… read more here.
Keywords: coding metasurface; metasurface diverse; coding metasurfaces; electromagnetic controls ... See more keywords