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Electrically Tunable Terahertz Metamaterial Absorber Comprised Cu/Graphene Strips

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Abstract

This communication investigates the spectral features of metamaterial-based absorber operating in the terahertz frequency band. Metamaterial-based absorber is comprised of copper (Cu) and graphene strips loaded over a silicon dioxide (SiO2) glass substrate. The absorptivity of the proposed absorber is analyzed by varying the chemical potential of the graphene and the slant angle of Cu strips. The results demonstrate that absorption band can be tuned by varying the chemical potential of graphene and the slant angle of copper strip. Such an absorber would be useful for the terahertz filtering and sensing applications in integrated optics.

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Funding

M.A. Baqir is thankful to the Higher Education Commission (HEC, Pakistan) for providing the grant 21-1811/SRGP/R&D/HEC/2017 toward the support of the project.

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  1. Department of Electrical and Computer Engineering, COMSATS University Islamabad, Sahiwal Campus, Sahiwal, 57000, Pakistan

    M. A. Baqir & S. A. Naqvi

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  1. M. A. Baqir
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  2. S. A. Naqvi
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Correspondence to M. A. Baqir.

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Baqir, M.A., Naqvi, S.A. Electrically Tunable Terahertz Metamaterial Absorber Comprised Cu/Graphene Strips. Plasmonics 15, 2205–2211 (2020). https://doi.org/10.1007/s11468-020-01252-1

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  • DOI: https://doi.org/10.1007/s11468-020-01252-1

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