Results 41 to 50 of about 36,989 (273)
Cancer Diagnosis Using Terahertz-Graphene-Metasurface-Based Biosensor with Dual-Resonance Response
Nanomaterials, 2022 Owing to the outstanding physical properties of graphene, its biosensing applications implemented by the terahertz metasurface are widely concerned and studied.
Chunjian Tan +6 more
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, 2018 This paper presents a technique, combining the integral equations (IE) and the Generalized Sheet Transition Conditions (GSTCs) with bianisotropic susceptibility tensors, to compute electromagnetic wave scattering by cylindrical metasurfaces -- forming ...
Caloz, Christophe +2 more
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Optics Express, 2022 We numerically study metasurfaces that incorporate electro-optic materials and show that they can achieve large amplitude and phase modulations across a distance that is a fraction of the operation wavelength. We show that the metasurfaces made of dielectric discs placed on a film of lithium niobate can exhibit three main types of resonances ...
Luyao Wang, Ilya Shadrivov
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Manipulating light at distance by a metasurface using momentum transformation
, 2014 A momentum conservation approach is introduced to manipulate light at distance using metasurfaces. Given a specified field existing on one side of the metasurface and specified desired field transmitted from the opposite side, a general momentum boundary
Caloz, Christophe, Salem, Mohamed A.
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Design, Concepts and Applications of Electromagnetic Metasurfaces [PDF]
, 2017 The paper overviews our recent work on the synthesis of metasurfaces and related concepts and applications. The synthesis is based on generalized sheet transition conditions (GSTCs) with a bianisotropic surface susceptibility tensor model of the ...
Achouri, Karim, Caloz, Christophe
core +3 more sources
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
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Complex wavefront engineering with disorder-engineered metasurfaces
, 2017 Recently, complex wavefront engineering with disordered media has demonstrated optical manipulation capabilities beyond those of conventional optics.
Arbabi, Amir +9 more
core +1 more source
Luminescent hyperbolic metasurfaces [PDF]
Nature Communications, 2017 AbstractWhen engineered on scales much smaller than the operating wavelength, metal-semiconductor nanostructures exhibit properties unobtainable in nature. Namely, a uniaxial optical metamaterial described by a hyperbolic dispersion relation can simultaneously behave as a reflective metal and an absorptive or emissive semiconductor for electromagnetic ...
Smalley, JST +9 more
openaire +5 more sources
Quasi-Periodic Dendritic Metasurface for Integral Operation in Visible Light
Molecules, 2020 A reflective metasurface model composed of silver dendritic units is designed in this study. The integral property of this metasurface, which consists of an upper layer of dendritic structures, a silica spacer, and a bottom silver substrate was ...
Huan Chen, Di An, Xiaopeng Zhao
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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