Results 61 to 70 of about 70,205 (364)
Moiré Hyperbolic Metasurfaces [PDF]
Nano Letters, 2020 17 pages, 4 ...
Yarden Mazor +6 more
openaire +4 more sources
Dynamic beam steering with all-dielectric electro-optic III–V multiple-quantum-well metasurfaces
Nature Communications, 2019 Here, the authors demonstrate an electrically tunable metasurface with III–V semiconducting MQW structures as resonant metasurface elements. The amplitude and phase of the light reflected from the metasurface can be continuously tuned by applying DC ...
Pin Chieh Wu +8 more
doaj +1 more source
Control Electromagnetic Waves Based on Multi-Layered Transparent Metasurface
Frontiers in Physics, 2019 Metasurface was presented to be the two-dimensional analogs of metamaterials that regulate the beam by adjusting the phase and amplitude of the wavefront.
Zhichao Sun +3 more
doaj +1 more source
Computational Analysis of Metasurfaces [PDF]
IEEE Journal on Multiscale and Multiphysics Computational Techniques, 2018 Metasurfaces represent one of the most vibrant fields of modern science and technology. A metasurface is a complex electromagnetic structure, that is typically deeply subwavelength in thickness, electrically large in transverse size and composed of subwavelength scattering particles with extremely small features; it may generally be bianisotropic ...
Yousef Vahabzadeh +3 more
openaire +3 more sources
Conformal sparse metasurfaces for wavefront manipulation [PDF]
Phys. Rev. Applied 14, 044007 (2020), 2020 While flat metasurfaces are intensively studied, theoretical modelling of conformal metasurfaces appears to be exceptionally challenging where it demands accurate analysis of the metasurface geometry. Here, it is shown how numerical calculation of Green's function can be employed to design conformal sparse metasurfaces of arbitrary geometries within ...
arxiv +1 more source
Plasmonic topological metasurface by encircling an exceptional point
Science, 2021 Description Upon reflection, modulate phase Metasurfaces provide a platform to fabricate optical devices in a compact form much thinner than their corresponding bulk optical components. Recognizing that metasurfaces are also open systems interacting with
Q. Song +4 more
semanticscholar +1 more source
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 ...
Nikolay I. Zheludev +7 more
openaire +6 more sources
IEEE Access, 2019 In this paper, high-order orbital angular momentum (OAM) vortex beams (OAMVBs) are generated using reflective metasurface. Generating high-order OAMVBs using traditional reflective metasurface methods deteriorates the radiation performance that affects ...
Zaid Akram +7 more
doaj +1 more source
Low loss metasurfaces based on quantized meta-atom [PDF]
arXiv, 2023 Metasurfaces have been proposed as a new paradigm to manipulate light and improve light-matter interactions. Conventional metasurfaces are restricted to the loss of materials, limiting their performance ceiling. Here, the loss of metallic metasurfaces is reduced to the level of dielectric metasurfaces by quantizing the meta-atom, and a coupling model ...
arxiv
Holographic metasurface gas sensors for instantaneous visual alarms
Science Advances, 2021 Holographic metasurfaces can sense and alarm toxic gases, with integration onto flexible surfaces such as safety glasses. The rapid detection of biological and chemical substances in real time is particularly important for public health and environmental
Inki Kim +10 more
semanticscholar +1 more source