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Single-Exosome SERS Detection by Means of a Flexible Metasurface [PDF]

open access: yesBiosensors
Single exosomes are detected via surface-enhanced Raman scattering (SERS) due to electromagnetic field accumulation on a specially designed flexible metasurface.
Konstantin Mochalov   +7 more
doaj   +2 more sources

Terahertz reconfigurable dielectric metasurface hybridized with vanadium dioxide for two-dimensional multichannel multiplexing

open access: yesFrontiers in Physics, 2022
The metasurface hybridized with vanadium dioxide (VO2) can be dynamically tuned, which has attracted enormous attention in recent years and orbital angular momentum (OAM) multiplexing based on metasurfaces has shown promising prospects in terahertz ...
Ling Wang   +7 more
doaj   +1 more source

Magnetless reflective gyrotropic spatial isolator metasurface

open access: yesNew Journal of Physics, 2021
We present the concept of a magnetless reflective gyrotropic spatial isolator (RGSI) metasurface. This is a birefringent metasurface that reflects vertically polarized incident waves into a horizontally polarized waves, and absorbs horizontally polarized
Guillaume Lavigne, Christophe Caloz
doaj   +1 more source

Low‐profile circularly polarized metasurface antenna with tailored reflection phase

open access: yesElectronics Letters, 2021
A low‐profile metasurface antenna with circularly polarized radiation and tailored anisotropic reflection is proposed in this letter. The metasurface antenna composed of excitation structure (microstrip line with coupling slot) and a metasurface layer ...
Yi Zhao, Xu Yao, Chun‐yu Wang
doaj   +1 more source

Design of dual-wavelength polarization control metasurface lens

open access: yesXibei Gongye Daxue Xuebao, 2022
With the rapid development of modern optics, optical elements have become an indispensable part of an optical system. A metasurface is a nanostructure composed of arrays of sub-wavelength scatterers and is widely used due to its simple structure, thin ...
LUO Wenfeng   +3 more
doaj   +1 more source

Shaping elastic wavefront through zigzag-folded metasurfaces

open access: yesFrontiers in Physics, 2023
We present a reconfigurable elastic metasurface design composed of an array of zigzag-folded sheets with parallel corrugations to control the wavefront of the refracted A0 Lamb mode wave.
Zhenkun Lin, Serife Tol
doaj   +1 more source

A Differential Modulation Scheme for Metasurface-Based Terahertz Communications

open access: yesFrontiers in Communications and Networks, 2021
Metasurface-based terahertz (THz) modulators, which carry information by changing the spatial pattern of the metasurface at every symbol time, are an important component to establish low-cost low-energy–consuming THz communication systems.
Shuaishuai Guo, Jia Ye, Peng Zhang
doaj   +1 more source

Real-Time Metasurface Sensor for Monitoring Micropoisons in Aqueous Solutions Based on Gold Nanoparticles and Terahertz Spectroscopy

open access: yesSensors, 2022
Proof of concept of a new real-time metasurface sensor for micropoison monitoring in aqueous solutions is proposed in this study. The sensor comprises a perfect absorber metasurface and gold nanoparticle layer on the front side of it.
Amir Abramovich   +2 more
doaj   +1 more source

Design of a wideband random phase gradient metasurface by using line-shaped element

open access: yesJournal of Advanced Dielectrics, 2020
Based on phase randomization theory, a method for manufacturing metasurface with diffuse scatter performance is proposed. By using the line-shaped elements with random rotate angles and random distributing positions, the metasurface can achieve good ...
Jiangniu Wu   +5 more
doaj   +1 more source

Chiral Metasurface for Near-Field Imaging and Far-Field Holography Based on Deep Learning

open access: yesMicromachines, 2023
Chiral metasurfaces have great influence on the development of holography. Nonetheless, it is still challenging to design chiral metasurface structures on demand.
Yihang Qiu   +5 more
doaj   +1 more source

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