Flexible and Electrically Tunable Plasmons in Graphene–Mica Heterostructures,Advanced Science

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Flexible and Electrically Tunable Plasmons in Graphene–Mica Heterostructures
Advanced Science ( IF 14.3 ) Pub Date : 2018-06-16 , DOI: 10.1002/advs.201800175
Hai Hu _{1,

2} , Xiangdong Guo _{1,

2} , Debo Hu _{1,

2} , Zhipei Sun _{3,

4} , Xiaoxia Yang _{1,

2} , Qing Dai _{1,

2}

Affiliation

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.

中文翻译：

石墨烯-云母异质结构中的柔性电可调等离子体

具有电可调性的柔性等离子体器件在多种应用中引起了极大的兴趣，例如柔性超材料、波导变换光学器件和可穿戴传感器。然而，传统的柔性金属聚合物等离子体结构缺乏电可调谐性。在这里，第一个基于石墨烯-云母异质结构的灵活、电可调、应变无关的等离子体激元得到了实验证明。石墨烯等离子体激元的谐振频率、强度、品质因数、电可调性和寿命在弯曲半径低至 1 毫米时以及在半径为 3 毫米的情况下进行 1000 次弯曲循环后没有表现出明显的变化。化学物质的等离子体增强红外光谱检测也被证明在柔性石墨烯-云母异质结构中不受影响。研究结果为等离激元波导、谐振器、传感器和调制器等柔性有源纳米光子器件的设计提供了基础。

更新日期：2018-06-16

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