Results 51 to 60 of about 11,788 (237)

Plasmonic and Dielectric Metasurfaces: Design, Fabrication and Applications

open access: yesApplied Sciences, 2016
Two-dimensional metasurfaces are widely focused on for their ability for flexible light manipulation (phase, amplitude, polarization) over sub-wavelength propagation distances.
Jian Wang, Jing Du
doaj   +1 more source

Optimization of the Geometrical Design for an All-Dielectric Metasurface Sensor with a High Refractive-Index Response

open access: yesChemosensors, 2023
This study aims to develop a refractive-index sensor operating in the visible region using an all-dielectric metasurface, which was chosen for its advantages of low optical loss and narrow spectral bandwidth, compared to those of conventional metallic ...
Chia-Te Chang   +5 more
doaj   +1 more source

All-dielectric polarization conversion metasurface achieved by high-permittivity ceramics

open access: yesAIP Advances, 2023
In this letter, we propose the design and manufacture of an all-dielectric metasurface using high-permittivity ceramics. The unit structure consists of a rectangular ceramic, which is asymmetric in the x and y direction.
Liyang Li   +4 more
doaj   +1 more source

Compact Unidirectional Laser Based on All-Dielectric Metasurface With High Quality Factor

open access: yesIEEE Photonics Journal, 2021
All-dielectric metasurfaces offer unconventional optical functional behaviors for manipulating light, due to the strong localization of light with negligible dissipative loss.
Ke Xu, Ming Fang, Zhixiang Huang
doaj   +1 more source

Dielectric Resonator Metasurface for Dispersion Engineering

open access: yes, 2016
We introduce a practical dielectric metasurface design for microwave frequencies. The metasurface is made of an array of dielectric resonators held together by dielectric connections thus avoiding the need of a mechanical support in the form of a ...
Achouri, Karim   +4 more
core   +1 more source

Brewster quasi bound states in the continuum in all-dielectric metasurfaces from single magnetic-dipole resonance meta-atoms

open access: yes, 2019
Bound states in the continuum (BICs) are ubiquitous in many areas of physics, attracting especial interest for their ability to confine waves with infinite lifetimes.
Abujetas, Diego R.   +6 more
core   +3 more sources

All-dielectric subwavelength metasurface focusing lens

open access: yesOptics Express, 2014
We have proposed, designed, manufactured and tested low loss dielectric micro-lenses for infrared (IR) radiation based on a dielectric metamaterial layer. This metamaterial layer was created by patterning a dielectric surface and etching to sub-micron depths.
Paul R, West   +8 more
openaire   +2 more sources

Active Tunable Pulse Shaping Using MoS2‐Assisted All‐Dielectric Metasurface

open access: yesAdvanced Photonics Research, 2023
While optical pulse shapers have important applications in classical and quantum communication regimes and laser resonant cavities, engineering of group delay dispersion (GDD) remains one of their greatest challenges.
Hediyeh Mohammadi Dinani   +1 more
doaj   +1 more source

Terahertz Sensing for R/S Chiral Ibuprofen via All-Dielectric Metasurface with Higher-Order Resonance

open access: yesApplied Sciences, 2021
A terahertz (THz) all-dielectric metasurface with crescent cylinder arrays for chiral drug sensing has been demonstrated. Through the multipole expansion method, we theoretically found that breaking the symmetry of the metasurface can excite higher-order
Weinan Shi   +6 more
doaj   +1 more source

High-efficiency light-wave control with all-dielectric optical Huygens' metasurfaces

open access: yes, 2014
Optical metasurfaces have developed as a breakthrough concept for advanced wave-front engineering enabled by subwavelength resonant nanostructures. However, reflection and/or absorption losses as well as low polarisation-conversion efficiencies pose a ...
Brener, Igal   +7 more
core   +1 more source

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