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Flexible and Electrically Tunable Plasmons in Graphene-Mica Heterostructures.

ABSTRACT: Flexible plasmonic devices with electrical tunability are of great interest for diverse applications, such as flexible metamaterials, waveguide transformation optics, and wearable sensors. However, the traditional flexible metal-polymer plasmonic structures suffer from a lack of electrical tunability. Here the first flexible, electrically tunable, and strain-independent plasmons based on graphene-mica heterostructures are experimentally demonstrated. The resonance frequency, strength, quality factor, electrical tunability, and lifetime of graphene plasmons exhibit no visible change at bending radius down to 1 mm and after 1000 bending cycles at a radius of 3 mm. The plasmon-enhanced infrared spectroscopy detection of chemicals is also demonstrated to be unaffected in the flexible graphene-mica heterostructures. The results provide the basis for the design of flexible active nanophotonic devices such as plasmonic waveguides, resonators, sensors, and modulators.

SUBMITTER: Hu H

PROVIDER: S-EPMC6096988 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Flexible and Electrically Tunable Plasmons in Graphene-Mica Heterostructures.

Hu Hai H Guo Xiangdong X Hu Debo D Sun Zhipei Z Yang Xiaoxia X Dai Qing Q

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20180616 8

Flexible plasmonic devices with electrical tunability are of great interest for diverse applications, such as flexible metamaterials, waveguide transformation optics, and wearable sensors. However, the traditional flexible metal-polymer plasmonic structures suffer from a lack of electrical tunability. Here the first flexible, electrically tunable, and strain-independent plasmons based on graphene-mica heterostructures are experimentally demonstrated. The resonance frequency, strength, quality fa ...[more]

PMID: 30128236

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