Terahertz sensing based on tunable fano resonance in graphene metamaterial

Wei Cui; Yixuan Wang; Jingjing Xue; Zhihui He; Hui He

Results in Physics (Dec 2021)

Terahertz sensing based on tunable fano resonance in graphene metamaterial

Wei Cui,
Yixuan Wang,
Jingjing Xue,
Zhihui He,
Hui He

Affiliations

Wei Cui: School of Physics and Electronic Information, Yan’an University, Yan’an 716000, China; Corresponding authors.
Yixuan Wang: School of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, China
Jingjing Xue: School of Physics and Electronic Information, Yan’an University, Yan’an 716000, China
Zhihui He: School of Physics and Electronic Information, Yan’an University, Yan’an 716000, China
Hui He: College of Applied Science and Technology, Hainan University, Danzhou 571737, China; Corresponding authors.

Journal volume & issue: Vol. 31
p. 104994

Abstract

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Here, the Fano resonance is investigated in a simple graphene metamaterial by the finite-difference time-domain (FDTD) method. The results indicate that transmission spectra of the Fano resonance can be tuned by the Fermi level and carrier mobility, and our proposed graphene metamaterial can be used in sensing applications at the terahertz band. Moreover, Figure of merit (FoM) for sensing can reach up to 106.92. Our proposal may pave the way for designing graphene-based terahertz sensing.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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