Results 21 to 30 of about 8,763 (266)
Mechanochromic Reconfigurable Metasurfaces [PDF]
Advanced Science, 2019 AbstractThe change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide, and silicon nitride changes color upon ...
Artemios Karvounis +6 more
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Organometallic Perovskite Metasurfaces [PDF]
Advanced Materials, 2017 Organometallic perovskites, solution-processable materials with outstanding optoelectronic properties and high index of refraction, provide a platform for all-dielectric metamaterials operating at visible frequencies. Perovskite metasurfaces with structural coloring tunable across visible frequencies are realized through subwavelength structuring ...
Gholipour B. +6 more
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A true metasurface antenna [PDF]
2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016 AbstractWe present a true metasurface antenna based on electrically-small resonators. The resonators are placed on a flat surface and connected to one feed point using corporate feed. Unlike conventional array antennas where the distance between adjacent antennas is half wavelength to reduce mutual coupling between adjacent antennas, here the distance ...
Mohamed El Badawe +2 more
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Moiré Hyperbolic Metasurfaces [PDF]
Nano Letters, 2020 17 pages, 4 ...
Guangwei Hu +4 more
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Active nonlocal metasurfaces [PDF]
Nanophotonics, 2020 Abstract Actively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication. Most wavefront‐shaping metasurfaces can be considered “local” in that their operation depends on the responses of individual meta‐units.
Stephanie C. Malek +3 more
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Metasurfaces for quantum photonics [PDF]
Nature Photonics, 2021 Rapid progress in the development of metasurfaces allowed to replace bulky optical assemblies with thin nanostructured films, often called metasurfaces, opening a broad range of novel and superior applications to the generation, manipulation, and detection of light in classical optics.
Alexander S. Solntsev +2 more
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Graphene-based tunable coding metasurfaces in terahertz band
EPJ Applied Metamaterials, 2020 Two graphene-based tunable coding metasurfaces are proposed for beam steering in terahertz band. The coding metasurfaces are composed of the unit cell with a sandwich-like structure, which contains the top layer of anisotropic rectangular graphene ...
Feng Jialin +3 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
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Crystals, 2021 The capability of three-dimensional printed cut-wire metasurfaces to harvest energy in frequencies around 2.4 GHz, is studied in this paper. Cut-wire metasurfaces were constructed using the Fused Filament Fabrication technique.
Z. Viskadourakis +5 more
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All-Dielectric Metasurfaces with High-Fluorescence-Enhancing Capability
Applied Sciences, 2018 All-dielectric metasurfaces are an emerging subfield in photonics. Light-wave manipulation has been extensively explored in these metasurfaces. Although light–matter interaction has also been investigated in these metasurfaces, only a limited ...
Masanobu Iwanaga
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