Graphene-Silver Hybrid Metamaterial for Tunable and High Absorption at Mid-Infrared Waveband

Shun Cao; Taisheng Wang; Qiang Sun; Yuguo Tang; Bingliang Hu; Uriel Levy; Weixing Yu

doi:10.1109/LPT.2018.2800729

Graphene-Silver Hybrid Metamaterial for Tunable and High Absorption at Mid-Infrared Waveband

Shun Cao^*, Taisheng Wang, Qiang Sun, Yuguo Tang, Bingliang Hu, Uriel Levy, Weixing Yu

^*Corresponding author for this work

The Institute of Applied Physics

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

22 Scopus citations

Abstract

We proposed a hybrid metamaterial structure based on graphene-silver, which has tunable and efficient light-absorbing performance at the mid-infrared regime. It is shown that this model can absorb light effectively with a maximum of 100% at the absorption peak wavelength. In addition, the absorption peak wavelength can be adjusted flexibly by changing parameters, including the chemical potential applied to graphene or other structural parameters of the structure. This nearly perfect absorption capability is attributed to the synergetic effects of the localized surface plasmon enhancement of Ag nanoribbon, graphene plasmonics, metal-insulator-graphene mode and Fabry-Perot resonance. This kind of tunable absorber can be used in mid-infrared photodetectors or spectroscopy fields.

Original language	English
Pages (from-to)	475-478
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	30
Issue number	5
DOIs	https://doi.org/10.1109/LPT.2018.2800729
State	Published - 1 Mar 2018

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Publisher Copyright:
© 2018 IEEE.

Keywords

Graphene
absorber
localized surface plasmon resonance enhancement
metamaterial
tunability

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10.1109/LPT.2018.2800729

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abstract = "We proposed a hybrid metamaterial structure based on graphene-silver, which has tunable and efficient light-absorbing performance at the mid-infrared regime. It is shown that this model can absorb light effectively with a maximum of 100% at the absorption peak wavelength. In addition, the absorption peak wavelength can be adjusted flexibly by changing parameters, including the chemical potential applied to graphene or other structural parameters of the structure. This nearly perfect absorption capability is attributed to the synergetic effects of the localized surface plasmon enhancement of Ag nanoribbon, graphene plasmonics, metal-insulator-graphene mode and Fabry-Perot resonance. This kind of tunable absorber can be used in mid-infrared photodetectors or spectroscopy fields.",

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AU - Hu, Bingliang

AU - Levy, Uriel

AU - Yu, Weixing

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Graphene-Silver Hybrid Metamaterial for Tunable and High Absorption at Mid-Infrared Waveband

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