Results 71 to 80 of about 27,230 (299)
Dynamic-Metasurface-Based Cavity Structures for Enhanced Absorption and Phase Modulation
, 2018 Metasurface-based optical cavity structures consist of a metallic metasurface realized on top of a dielectric slab backed with a metal plane. Such structures have been employed in the design of optical devices such as flat lenses, wave plates, and ...
Jihyun Hwang (6095045) +5 more
core +1 more source
Advanced Functional Materials, EarlyView.A CMOS‐compatible, all‐dielectric Silicon‐on‐Glass reflective metasurface enables low–loss terahertz wavefront control for future 6G wireless communication. Mie‐resonant silicon pillars provide full phase coverage near 500 GHz, achieving experimentally validated single‐, dual‐, and five‐beam steering with sub‐1.5° angular error and less than 3 dB ...
Rithwik Premanand +6 more
wiley +1 more source
A Four-leaf Clover-shaped Coding Metasurface For Ultra-wideband Diffusion-like Scattering
Leida xuebao, 2021 In this paper, a novel four-leaf clover-shaped coding metasurface is proposed and applied to achieve an ultra-wideband diffusion-like scattering.
Saifullah YASIR, Guomin YANG, Feng XU
doaj +1 more source
Binary THz modulator based on silicon Schottky-metasurface
, 2022 We propose a metasurface THz modulator based on split-ring resonators (SRRs) formed by four interconnected horizontal Si–Au Schottky diodes. The equivalent junction capacitance of each SRR in the proposed modulator is much smaller than that of the ...
Mohammad Neshat (21286199) +2 more
core
Metasurface enabled 3-in-1 microscopy [PDF]
, 2023 Edge enhancement and polarization detection are critical to image transparent or low-contrast samples. However, currently available systems are limited to performing only a single functionality.
Xianzhong Chen +19 more
core +1 more source
Advanced Materials, EarlyView.Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son +20 more
wiley +1 more source
Chiral Metasurface Multifocal Lens in the Terahertz Band Based on Deep Learning
Micromachines, 2023 Chiral metasurfaces have garnered significant interest as an emerging field of metamaterials, primarily due to their exceptional capability to manipulate phase distributions at interfaces.
Jingjing Wang +5 more
doaj +1 more source
Information theory of metasurfaces [PDF]
National Science Review, 2019 Abstract We propose a theory to characterize the information and information processing abilities of metasurfaces, and demonstrate the relation between the information of the metasurface and its radiation pattern in the far-field region. By incorporating a general aperture model with uncertainty relation in L2-space, we propose a theory ...
Wu, Haotian +6 more
openaire +2 more sources
, 2023 Terahertz (THz) band has been attracting an enormous reputation due to the paucity of natural materials in this range. Artificially flat thin films, called metasurfaces, plead the research community owing to their unprecedented features to manipulate the
Massoud, Yehia Mahmoud +3 more
core +1 more source
Defect‐Templated Phase Engineering in Atomically Thin Metals
Advanced Materials, EarlyView.Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain +25 more
wiley +1 more source