Results 41 to 50 of about 9,186 (292)
Review on Metasurfaces: An Alternative Approach to Advanced Devices and Instruments
Advanced Devices & Instrumentation, 2022 This paper reviews the-state-of-the-art of electromagnetic (EM) metasurfaces and emergent applications in advanced integrated devices and instruments from the design method to physical implementation.
Xiaoguang Zhao +7 more
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Metasurface polarization splitter [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017 Polarization beam splitters, devices that separate the two orthogonal polarizations of light into different propagation directions, are among the most ubiquitous optical elements. However, traditionally polarization splitters rely on bulky optical materials, while emerging optoelectronic and photonic circuits require compact, chip-scale polarization ...
Brian A. Slovick +7 more
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Asymmetric Metasurfaces with High-Q Resonances Governed by Bound States in the Continuum. [PDF]
Physical Review Letters, 2018 We reveal that metasurfaces created by seemingly different lattices of (dielectric or metallic) meta-atoms with broken in-plane symmetry can support sharp high-Q resonances arising from a distortion of symmetry-protected bound states in the continuum. We
K. Koshelev +4 more
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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
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Diffractive Nonlocal Metasurfaces
Laser & Photonics Reviews, 2022 Metasurfaces are ushering in an era of multifunctional control over optical wavefronts realized with ultrathin planarized devices. Recent advances have been enabling unprecedented control over the frequency response of these surfaces, suggesting that the
A. Overvig, A. Alú
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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
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Light-emitting metasurfaces [PDF]
Nanophotonics, 2019 Abstract Photonic metasurfaces, that is, two-dimensional arrangements of designed plasmonic or dielectric resonant scatterers, have been established as a successful concept for controlling light fields at the nanoscale. While the majority of research so far has concentrated on passive metasurfaces, the direct integration of nanoscale ...
Aleksandr Vaskin +3 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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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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Roadmap for Optical Metasurfaces
ACS PhotonicsMetasurfaces have recently risen to prominence in optical research, providing unique functionalities that can be used for imaging, beam forming, holography, polarimetry, and many more, while keeping device dimensions small.
A. Kuznetsov +47 more
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