Coupled Resonance Enhanced Modulation for a Graphene-Loaded Metamaterial Absorber

Dong Xiao; Qiang Liu; Lei Lei; Yiling Sun; Zhengbiao Ouyang; Keyu Tao

doi:10.1186/s11671-019-2852-y

Nanoscale Research Letters (Jan 2019)

Coupled Resonance Enhanced Modulation for a Graphene-Loaded Metamaterial Absorber

Dong Xiao,
Qiang Liu,
Lei Lei,
Yiling Sun,
Zhengbiao Ouyang,
Keyu Tao

Affiliations

Dong Xiao: THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University
Qiang Liu: THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University
Lei Lei: THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University
Yiling Sun: THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University
Zhengbiao Ouyang: THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University
Keyu Tao: THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology, Shenzhen University

DOI: https://doi.org/10.1186/s11671-019-2852-y
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 6

Abstract

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Abstract A graphene-loaded metamaterial absorber is investigated in the mid-infrared region. The light-graphene interaction is greatly enhanced by virtue of the coupled resonance through a cross-shaped slot. The absorption peaks show a significant blueshift with increasing Fermi level, enabling a wide range of tunability for the absorber. A simple circuit model well explains and predicts this modulation behavior. Our proposal may find applications in a variety of areas such as switching, sensing, modulating, and biochemical detecting.

Published in Nanoscale Research Letters

ISSN: 1931-7573 (Print); 1556-276X (Online)
Publisher: SpringerOpen
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.springer.com/journal/11671

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