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Open AccessArticle

Tunable Metamaterial with Gold and Graphene Split-Ring Resonators and Plasmonically Induced Transparency

Guangzhou Key Laboratory for Special Fiber Photonic Devices and Applications & Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China
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Nanomaterials 2019, 9(1), 7; https://doi.org/10.3390/nano9010007
Received: 28 November 2018 / Revised: 16 December 2018 / Accepted: 20 December 2018 / Published: 21 December 2018
(This article belongs to the Special Issue Optoelectronic Nanodevices)
In this paper, we propose a metamaterial structure for realizing the electromagnetically induced transparency effect in the MIR region, which consists of a gold split-ring and a graphene split-ring. The simulated results indicate that a single tunable transparency window can be realized in the structure due to the hybridization between the two rings. The transparency window can be tuned individually by the coupling distance and/or the Fermi level of the graphene split-ring via electrostatic gating. These results could find significant applications in nanoscale light control and functional devices operating such as sensors and modulators. View Full-Text
Keywords: metamaterials; mid infrared; graphene split-ring; gold split-ring; electromagnetically induced transparency effect metamaterials; mid infrared; graphene split-ring; gold split-ring; electromagnetically induced transparency effect
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MDPI and ACS Style

Ma, Q.; Zhan, Y.; Hong, W. Tunable Metamaterial with Gold and Graphene Split-Ring Resonators and Plasmonically Induced Transparency. Nanomaterials 2019, 9, 7.

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