Flexible and Electrically Tunable Plasmons in Graphene–Mica Heterostructures

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Hai Hu
  • Xiangdong Guo
  • Debo Hu
  • Zhipei Sun

  • Xiaoxia Yang
  • Qing Dai

Research units

  • National Center for Nanoscience and Technology Beijing
  • Chinese Academy of Sciences

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.

Details

Original languageEnglish
Article number1800175
JournalAdvanced Science
Volume5
Issue number8
Publication statusPublished - 1 Aug 2018
MoE publication typeA1 Journal article-refereed

    Research areas

  • flexible plasmons, graphene plasmons, graphene–mica heterostructures, mid-infrared plasmons

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