Results 1 to 10 of about 110,697 (224)
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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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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Study on Temperature Adjustable Terahertz Metamaterial Absorber Based on Vanadium Dioxide
IEEE Access, 2020 In the study of modern optics, the work of terahertz metamaterial absorbers is mostly multi-band perfect absorbers and ultra-wideband perfect absorbers. In contrast, in practical applications, metamaterial absorbers with adjustable resonance frequency or
Pinghui Wu, Zao Yi, Zigang Zhou
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Interference Theory of Metamaterial Perfect Absorbers
Optics Express, 2012 8 pages, 4 figures, submitted to Optics ...
Hou-Tong Chen
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Conformal Metamaterial Absorber for Curved Surface
Optics Express, 2013 In this paper, three different unit cells are designed on the basis split-ring-cross resonators, and each unit cell has an absorption rate greater than 90% at incident angles of 0°, 30°, and 45°, respectively. They are non-periodically placed in three different zones on the curved surface.
Sungjoon Lim, Minyeong Yoo
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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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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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Comment on “Design and Characterization of an Ultrabroadband Metamaterial Microwave Absorber”
IEEE Photonics Journal, 2020 The authors have proposed an Ultrabroadband Metamaterial Microwave Absorber. The authors have claimed that the proposed structure is metamaterial absorber. We have recognized that the designed structure is not a metamaterial absorber because of ignorance
Saeed Ur Rahman +4 more
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Metamaterial Electromagnetic Wave Absorbers [PDF]
Advanced Materials, 2012 Abstract The 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
Claire M, Watts +2 more
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