Results 41 to 50 of about 11,788 (237)
All-dielectric metasurfaces with high Q-factor Fano resonances enabling multi-scenario sensing
Nanophotonics, 2022 We propose and numerically demonstrate high Q-factor sensors based on all-dielectric metasurfaces, which are very sensitive to the change of the refractive index of the surrounding media and the incident angle.
Chen Xueer +5 more
doaj +1 more source
Refractive index sensor based on all-dielectric gradient metasurface
Sensing and Bio-Sensing Research, 2019 A new type of a refractive index sensor based on all-dielectric gradient metasurface was proposed and analyzed with making use of the finite element method (FEM).
S.A. Rodionov, M.A. Remnev, V.V. Klimov
doaj +1 more source
Metasurface-Based Holographic Display With All-Dielectric Meta-Axilens
IEEE Photonics Journal, 2021 In a classical metasurface-based holographic display system, a clear holographic reconstruction image can be obtained only in the back-focal-plane of the lens. However, when the receiving plane deviates from the focal plane, the reconstructed holographic
Chuan Shen +4 more
doaj +1 more source
Active Tuning of All-Dielectric Metasurfaces
ACS Nano, 2015 All-dielectric metasurfaces provide a powerful platform for highly efficient flat optical devices, owing to their strong electric and magnetic dipolar response accompanied by negligible losses at near-infrared frequencies. Here we experimentally demonstrate dynamic tuning of electric and magnetic resonances in all-dielectric silicon nanodisk ...
Sautter, Jurgen +6 more
openaire +3 more sources
Multi-Channel Polarization Manipulation Based on All-Dielectric Metasurface
Photonics, 2022 A metasurface is a planar structure that can be utilized to manipulate the amplitude, phase, and polarization of light on a subwavelength scale. Although a variety of functional optical devices based on metasurface have been proposed, the simultaneous ...
Susu Hu +5 more
doaj +1 more source
Wide bandwidth and high resolution planar filter array based on DBR-metasurface-DBR structures [PDF]
, 2016 We propose and experimentally demonstrate a planar array of optical bandpass filters composed of low loss dielectric metasurface layers sandwiched between two distributed Bragg reflectors (DBRs).
Arbabi, Amir +4 more
core +2 more sources
Role of loss in all-dielectric metasurfaces
Optics Express, 2018 Arrays of dielectric cylinders support two fundamental dipole active eigenmodes, which can be manipulated to elicit a variety of electromagnetic responses in all-dielectric metamaterials. Dissipation is a critical parameter in determining functionality; the present work varies material loss to explore the rich electromagnetic response of this class of ...
Andrew Cardin, Kebin Fan, Willie Padilla
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Tunable circular dichroism in all-dielectric metasurface with efficient wavefront manipulation
Results in Physics, 2023 In this paper, an all-dielectric metasurface based on phase-change material Ge2Sb2Se4Te1 (GSST) working in the mid-infrared band is designed, and combined with Pancharatnam-Berry (PB) phase to realize multifunctional metasurfaces.
Zhuolin Shi +4 more
doaj +1 more source
Planar immersion lens with metasurfaces [PDF]
, 2015 The solid immersion lens is a powerful optical tool that allows light entering material from air or vacuum to focus to a spot much smaller than the free-space wavelength. Conventionally, however, they rely on semispherical topographies and are non-planar
Fan, Shanhui +5 more
core +2 more sources
Multiwavelength polarization insensitive lenses based on dielectric metasurfaces with meta-molecules [PDF]
, 2016 Metasurfaces are nano-structured devices composed of arrays of subwavelength scatterers (or meta-atoms) that manipulate the wavefront, polarization, or intensity of light.
Arbabi, Amir +4 more
core +3 more sources