A Thin Multilayer Broadband Metamaterial Absorber based on ITO

2020 ◽  
Author(s):  
Yanzhao Wang ◽  
He-Xiu Xu ◽  
Chaohui Wang ◽  
Mingzhao Wang ◽  
Shaojie Wang
Keyword(s):  
Metamaterial Absorber

Single-peak-regulation and wide-angle dual-band metamaterial absorber based on hollow-cross and solid-cross resonators

2020 ◽  
Vol 91 (3) ◽  
pp. 30901
Author(s):  
Yibo Tang ◽  
Longhui He ◽  
Jianming Xu ◽  
Hailang He ◽  
Yuhan Li ◽  
...  
Keyword(s):  
Transverse Electric ◽  
Surface Current ◽  
Dielectric Substrate ◽  
Transverse Magnetic ◽  
Metamaterial Absorber ◽  
Absorption Peak ◽  
Dual Band ◽  
Single Peak ◽  
Wide Angle ◽  
Surface Current Density

A dual-band microwave metamaterial absorber with single-peak regulation and wide-angle absorption has been proposed and illustrated. The designed metamaterial absorber is consisted of hollow-cross resonators, solid-cross resonators, dielectric substrate and metallic background plane. Strong absorption peak coefficients of 99.92% and 99.55% are achieved at 8.42 and 11.31 GHz, respectively, which is basically consistent with the experimental results. Surface current density and changing material properties are employed to illustrate the absorptive mechanism. More importantly, the proposed dual-band metamaterial absorber has the adjustable property of single absorption peak and could operate well at wide incidence angles for both transverse electric (TE) and transverse magnetic (TM) waves. Research results could provide and enrich instructive guidances for realizing a single-peak-regulation and wide-angle dual-band metamaterial absorber.

A Wide-Band Metamaterial Absorber Based on Loaded Magnetic Resonators

2011 ◽  
Vol 28 (6) ◽  
pp. 067808 ◽  
Author(s):  
Chao Gu ◽  
Shao-Bo Qu ◽  
Zhi-Bin Pei ◽  
Hua Ma ◽  
Zhuo Xu ◽  
...  
Keyword(s):  
Wide Band ◽  
Metamaterial Absorber

ZrN fractal-graphene-based metamaterial absorber in the visible and near-IR regimes

Optik ◽  
2021 ◽  
Vol 237 ◽  
pp. 166769
Author(s):  
M.A. Baqir ◽  
P.K. Choudhury ◽  
Majid Niaz Akhtar
Keyword(s):  
Metamaterial Absorber ◽  
Near Ir

scholarly journals Independently Tunable Multipurpose Absorber with Single Layer of Metal-Graphene Metamaterials

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 284
Author(s):  
Chen Han ◽  
Renbin Zhong ◽  
Zekun Liang ◽  
Long Yang ◽  
Zheng Fang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Fermi Level ◽  
Potential Application ◽  
Single Layer ◽  
Wide Band ◽  
Metamaterial Absorber ◽  
Unit Cell ◽  
Perfect Absorption ◽  
Solar Energy Harvesting ◽  
Band Absorption

This paper reports an independently tunable graphene-based metamaterial absorber (GMA) designed by etching two cascaded resonators with dissimilar sizes in the unit cell. Two perfect absorption peaks were obtained at 6.94 and 10.68 μm with simple single-layer metal-graphene metamaterials; the peaks show absorption values higher than 99%. The mechanism of absorption was analyzed theoretically. The independent tunability of the metamaterial absorber (MA) was realized by varying the Fermi level of graphene under a set of resonators. Furthermore, multi-band and wide-band absorption were observed by the proposed structure upon increasing the number of resonators and resizing them in the unit cell. The obtained results demonstrate the multipurpose performance of this type of absorber and indicate its potential application in diverse applications, such as solar energy harvesting and thermal absorbing.

Comments on “A set square design metamaterial absorber for X band applications”

2021 ◽  
pp. 1-5
Author(s):  
Saeed Ur Rahman ◽  
Habib Ullah ◽  
Qunsheng Cao ◽  
Muhammad Kabir Khan ◽  
Naveed Ullah
Keyword(s):  
Metamaterial Absorber ◽  
X Band

scholarly journals Broadband Solar Absorber Based on Square Ring cross Arrays of ZnS

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 909
Author(s):  
Feng Xu ◽  
Lixia Lin ◽  
Jun Fang ◽  
Mianli Huang ◽  
Feng Wang ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Visible Light ◽  
Surface Plasmon ◽  
Wide Spectrum ◽  
Clean Energy ◽  
Metamaterial Absorber ◽  
Absorption Efficiency ◽  
Plasmon Mode ◽  
Solar Absorber ◽  
Absorbing Material

Solar energy is an inexhaustible clean energy. However, how to improve the absorption efficiency in the visible band is a long-term problem for researchers. Therefore, an electromagnetic wave absorber with an ultra-long absorption spectrum has been widely considered by researchers of optoelectronic materials. A kind of absorbing material based on ZnS material is presented in this paper. Our purpose is for the absorber to achieve a good and wide spectrum of visible light absorption performance. In the wide spectrum band (553.0 THz–793.0 THz) of the absorption spectrum, the average absorption rate of the absorber is above 94%. Using surface plasmon resonance (SPR) and gap surface plasmon mode, the metamaterial absorber was studied in visible light. In particular, the absorber is insensitive to both electric and magnetic absorption. The absorber can operate in complex electromagnetic environments and at high temperatures. This is because the absorber is made of refractory metals. Finally, we discuss and analyze the influence of the parameters regulating the absorber on the absorber absorption efficiency. We have tried to explain why the absorber can produce wideband absorption.

Study on the effect of protein buffer solution on hydrogen bonding of water molecules based on terahertz metamaterial absorber

Optik ◽  
2021 ◽  
Vol 238 ◽  
pp. 166771
Author(s):  
Jianjun Liu ◽  
Tiejun Li ◽  
Senquan Yan ◽  
Haoxiang Wen ◽  
Fan Ding
Keyword(s):  
Hydrogen Bonding ◽  
Metamaterial Absorber ◽  
Water Molecules ◽  
Buffer Solution
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