Results 1 to 10 of about 2,328 (261)

Broadband absorber with dispersive metamaterials

open access: yesNanophotonics, 2023
A broadband absorber that utilizes a dispersive metamaterial and covers the entire microwave X-band (8–12 GHz) is proposed in the present study. An ideal absorber attached to the surface of a perfect electric conductor requires the permittivity of the ...
Han WonHeum, Park Q-Han
doaj   +3 more sources

Inverse Design of Ultrathin Metamaterial Absorber. [PDF]

open access: yesNanomaterials (Basel)
Electromagnetic absorbers combining ultrathin profiles with robust absorptivity across wide incidence angles are essential for applications such as stealth applications, wireless communications, and quantum computing. Traditional designs, including Salisbury screens, typically require thicknesses of at least a quarter-wavelength (λ/4), restricting ...
Jang E, Cho J, Kang C, Chung H.
europepmc   +5 more sources

Dielectric Cavity-Insulator-Metal (DCIM) Metamaterial Absorber in Visible Range [PDF]

open access: yesNanomaterials, 2023
For many years, metamaterial absorbers have received much attention in a wide range of application fields. There is an increasing need to search for new design approaches that fulfill more and more complex tasks.
Tian-Long Guo   +2 more
doaj   +2 more sources

An ultra-broadband microwave absorber based on hybrid structure of stereo metamaterial and planar metasurface for the S, C, X and Ku bands

open access: yesResults in Physics, 2021
Broadband electromagnetic (EM) wave absorbers are persistently desired in the past decades due to their extensive applications in different fields. In this paper, we proposed and demonstrated a metamaterial absorber (MA) based on a hybrid structure of ...
Ping Chen
exaly   +3 more sources

Toward an Ultra-Wideband Hybrid Metamaterial Based Microwave Absorber

open access: yesMicromachines, 2020
In this paper, we propose a novel design of an ultra-wideband hybrid microwave absorber operating in the frequency range between 2 GHz and 18 GHz. This proposed hybrid absorber is composed of two different layers that integrate a multiband metamaterial ...
Akil Jrad   +2 more
exaly   +3 more sources

Design of a Four-Band and Polarization-Insensitive Terahertz Metamaterial Absorber

open access: yesIEEE Photonics Journal, 2015
We present a four-band and polarization-insensitive terahertz metamaterial absorber formed by four square metallic rings and a metallic ground plane separated by a dielectric layer.
X Zhai, G Z Wang, B X Wang
exaly   +3 more sources

Perfect Metamaterial Absorber [PDF]

open access: yesPhysical Review Letters, 2008
We present the design for an absorbing metamaterial element with near unity absorbance. Our structure consists of two metamaterial resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a metamaterial absorber with a slightly lower
Landy, N. I.   +4 more
openaire   +3 more sources

Parametric Optimization and Numerical Analysis of GaAs Inspired Highly Efficient I-Shaped Metamaterial Solar Absorber Design for Visible and Infrared Regions

open access: yesApplied Sciences, 2023
Renewable energy demand is increasing as fossil fuels are limited and pollute the environment. The solar absorber is an efficient renewable energy source that converts solar radiation into heat energy.
Meshari Alsharari   +2 more
doaj   +1 more source

Multispectral metamaterial absorber [PDF]

open access: yesOptics Letters, 2014
We present the simulation, implementation, and measurement of a multispectral metamaterial absorber (MSMMA) and show that we can realize a simple absorber structure that operates in the mid-IR and terahertz (THz) bands. By embedding an IR metamaterial absorber layer into a standard THz metamaterial absorber stack, a narrowband resonance is induced at a
Grant, J.   +3 more
openaire   +2 more sources

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