Results 51 to 60 of about 65,305 (312)
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
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
Optical metasurfaces for generating and manipulating optical vortex beams
Nanophotonics, 2022 Optical vortices (OVs) carrying orbital angular momentum (OAM) have attracted considerable interest in the field of optics and photonics owing to their peculiar optical features and extra degree of freedom for carrying information.
Hammad Ahmed +7 more
semanticscholar +1 more source
Electromagnetic wave manipulation based on few-layer metasurfaces and polyatomic metasurfaces
ChemPhysMater, 2022 Metasurfaces, whose electromagnetic (EM) responses can be artificially designed, are two-dimensional arrays composed of subwavelength nanostructures. Accompanied by various fascinating developments in the past decade, metasurfaces have been proved as a ...
Shiwang Yu +6 more
doaj
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
doaj +1 more source
Micromachines, 2021 Looking back on the development of metamaterials in the past 20 years, metamaterials have gradually developed from three-dimensional complex electromagnetic structures to a two-dimensional metasurface with a low profile, during which a series of ...
Sisi Luo +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
Electroelastic metasurface with resonant piezoelectric shunts for tunable wavefront control [PDF]
, 2022 This study presents a tunable phase-modulated metasurface composed of periodically distributed piezoelectric patches with resonant-type shunt circuits. The fully coupled electromechanical model is established to study the transmission characteristics of the metasurface unit and validated through numerical and experimental studies. Based on the analysis
arxiv +1 more source
Metasurface-Based Polarimeters [PDF]
Applied Sciences, 2018 The state of polarization (SOP) is an inherent property of light that can be used to gain crucial information about the composition and structure of materials interrogated with light. However, the SOP is difficult to experimentally determine since it involves phase information between orthogonal polarization states, and is uncorrelated with the light ...
Fei Ding +2 more
openaire +4 more sources
Optical Metasurfaces for Energy Conversion
Chemical Reviews, 2022 Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow efficient harvesting of light at the nanoscale, enhancing light–matter interactions for a wide variety of material combinations.
E. Cortes +9 more
semanticscholar +1 more source