Angularly tunable perfect absorption in graphene-mushroom hybrid structure for all angles

Zhen Xue; Shuomin Zhong; Xuchen Wang; Yungui Ma

doi:10.1063/5.0049851

Angularly tunable perfect absorption in graphene-mushroom hybrid structure for all angles

Zhen Xue
, Shuomin Zhong^*
, Xuchen Wang
, Yungui Ma

^*Corresponding author for this work

Ningbo University
Zhejiang University

Research output: Contribution to journal › Article › Scientific › peer-review

25 Citations (Web of Science)

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Abstract

In this work, the authors propose a graphene-based tunable perfect metamaterial absorber at microwaves that can achieve perfect absorption at all angles. This is realized by stacking an unpatterned graphene sandwich structure and a dielectric layer on top of a mushroom-type high impedance surface whose resonant frequency is stable for all angles of incidence. A perfect-absorption-angle tunable absorber working at TM polarization is designed and realized, achieving perfect absorption covering a wide range of angles from normal to grazing incidence at the same frequency when the impedance of graphene is modulated by different bias voltages. The design concept of integrating different tunable materials and meta-structures opens up promising possibilities for wave manipulation with applications in smart and multifunctional electromagnetic devices.

Original language	English
Article number	161103
Number of pages	7
Journal	Applied Physics Letters
Volume	118
Issue number	16
DOIs	https://doi.org/10.1063/5.0049851
Publication status	Published - 19 Apr 2021
MoE publication type	A1 Journal article-refereed

Funding

This work was supported by the National Natural Science Foundations of China (NSFC) (Nos. 61701268, 61775195, and 62075196). Zhen Xue acknowledges Changzhou Hua, Yu Zhang, Jiaqi Feng, and Peining Lai for their help in the sample test. We would like to thank Professor Sergei A. Tretyakov, Professor Constantin Simovski, and Professor Weiren Zhu for helpful discussions.

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Xue_Angularly_tunable_perfect_absorption_APLFinal published version, 1.74 MB

Cite this

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title = "Angularly tunable perfect absorption in graphene-mushroom hybrid structure for all angles",

abstract = "In this work, the authors propose a graphene-based tunable perfect metamaterial absorber at microwaves that can achieve perfect absorption at all angles. This is realized by stacking an unpatterned graphene sandwich structure and a dielectric layer on top of a mushroom-type high impedance surface whose resonant frequency is stable for all angles of incidence. A perfect-absorption-angle tunable absorber working at TM polarization is designed and realized, achieving perfect absorption covering a wide range of angles from normal to grazing incidence at the same frequency when the impedance of graphene is modulated by different bias voltages. The design concept of integrating different tunable materials and meta-structures opens up promising possibilities for wave manipulation with applications in smart and multifunctional electromagnetic devices.",

author = "Zhen Xue and Shuomin Zhong and Xuchen Wang and Yungui Ma",

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doi = "10.1063/5.0049851",

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Y1 - 2021/4/19

N2 - In this work, the authors propose a graphene-based tunable perfect metamaterial absorber at microwaves that can achieve perfect absorption at all angles. This is realized by stacking an unpatterned graphene sandwich structure and a dielectric layer on top of a mushroom-type high impedance surface whose resonant frequency is stable for all angles of incidence. A perfect-absorption-angle tunable absorber working at TM polarization is designed and realized, achieving perfect absorption covering a wide range of angles from normal to grazing incidence at the same frequency when the impedance of graphene is modulated by different bias voltages. The design concept of integrating different tunable materials and meta-structures opens up promising possibilities for wave manipulation with applications in smart and multifunctional electromagnetic devices.

AB - In this work, the authors propose a graphene-based tunable perfect metamaterial absorber at microwaves that can achieve perfect absorption at all angles. This is realized by stacking an unpatterned graphene sandwich structure and a dielectric layer on top of a mushroom-type high impedance surface whose resonant frequency is stable for all angles of incidence. A perfect-absorption-angle tunable absorber working at TM polarization is designed and realized, achieving perfect absorption covering a wide range of angles from normal to grazing incidence at the same frequency when the impedance of graphene is modulated by different bias voltages. The design concept of integrating different tunable materials and meta-structures opens up promising possibilities for wave manipulation with applications in smart and multifunctional electromagnetic devices.

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Angularly tunable perfect absorption in graphene-mushroom hybrid structure for all angles

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