Flexible and Electrically Tunable Plasmons in Graphene-Mica Heterostructures.
Flexible and Electrically Tunable Plasmons in Graphene-Mica Heterostructures.
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石墨烯-云母异质结构中的柔性电可调等离子体
DOI:
10.1002/advs.201800175
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发表时间:
2018-08
期刊:
影响因子:
--
通讯作者:
Dai Q
中科院分区:
文献类型:
--
作者:
Hu H;Guo X;Hu D;Sun Z;Yang X;Dai Q
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.
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