Results 1 to 10 of about 10,273 (293)
Broadband absorber with dispersive metamaterials
Nanophotonics, 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
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Dielectric Cavity-Insulator-Metal (DCIM) Metamaterial Absorber in Visible Range [PDF]
Nanomaterials, 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
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Universal metamaterial absorbe
2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials), 2016 We propose a design for an universal absorber, characterized by a resonance frequency that can be tuned from visible to microwave frequencies independently of the choice of the metal and the dielectrics involved.
Centeno, Emmanuel +4 more
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Aperiodic-metamaterial-based absorber [PDF]
APL Materials, 2017 The periodic-metamaterial-based perfect absorber has been studied broadly. Conversely, if the unit cell in the metamaterial-based absorber is arranged aperiodically (aperiodic-metamaterial-based absorber), how does it perform?
Quanlong Yang +9 more
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Manually tunable ventilated metamaterial absorbers [PDF]
Applied Physics Letters, 2021 For most acoustic metamaterials, once they have been fabricated, their operating frequencies and functions cannot be adjusted, which is an intrinsic barrier for the development of realistic applications. The study to overcome this limit has become a significant issue in acoustic metamaterial engineering.
Xiao Xiang +4 more
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Perfect Metamaterial Absorber [PDF]
Physical 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
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Multispectral metamaterial absorber [PDF]
Optics 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
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Applied 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
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Optically controlled and polarized sensitivity adjustable terahertz metamaterial absorber
Results in Optics, 2022 A photoactive terahertz (THz) absorber is designed based on the quadruple rotational symmetrical metamaterial structure combined with the GaAs bars. For the bare metallic metamaterial structure, the THz absorber shows a polarization insensitive property ...
Chao Ma +10 more
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Metamaterial Electromagnetic Wave Absorbers [PDF]
Advanced Materials, 2012 AbstractThe advent of negative index materials has spawned extensive research into metamaterials over the past decade. Metamaterials are attractive not only for their exotic electromagnetic properties, but also their promise for applications. A particular branch–the metamaterial perfect absorber (MPA)–has garnered interest due to the fact that it can ...
Claire M, Watts +2 more
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