Flexible terahertz spoof plasmonics based on graphene-assembled films

Spoof plasmonics, which can enable strong terahertz (THz) radiation-matter interactions, hold great promise for the advancement of THz science and technology. However, THz spoof plasmonic devices based on micro-structured metals are in general limited by lithography-based fabrication processes as well as metals' mechanical, chemical, and thermal stability, which hinders their applications in, for instance, flexible and wearable THz imaging and communications, molecular sensing, etc. Possessing high electrical conductivity and outstanding mechanical robustness, graphene-assembled films (GAFs) promise many benefits for electronics as an alternative to metals. Here, by studying the resonance-enhanced transmission properties of subwavelength GAF hole arrays, we demonstrate a GAF metasurface as a transformative platform for flexible THz spoof plasmonics. Based on a laser direct writing (LDW) patterning technique, the proposed micro-engineered GAF is expected to pave the way toward large-area, durable, and inexpensive THz metadevices with superior flexibility.

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in [Flexible terahertz spoof plasmonics based on graphene-assembled films. Applied Physics Letters 124, 23 (2024)] and may be found at https://doi.org/10.1063/5.0212594.

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Work Title Flexible terahertz spoof plasmonics based on graphene-assembled films
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Open Access
Creators
  1. Bohan Zhang
  2. Dapeng He
  3. Qian Zhang
  4. Jiaxing Fang
  5. Xueguang Lu
  6. Wanxia Huang
  7. Zibo Chen
  8. Daping He
  9. Lei Kang
  10. Douglas H. Werner
  11. Shengxiang Wang
Keyword
  1. Plasmonics
  2. Electrical conductivity
  3. Terahertz radiation
  4. Microwave frequencies
  5. Multiphoton lithography
  6. Graphene
  7. Materials properties
  8. Scanning electron microscopy
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Applied Physics Letters
Publication Date June 6, 2024
Publisher Identifier (DOI)
  1. https://doi.org/10.1063/5.0212594
Deposited September 09, 2024

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Version 1
published

  • Created
  • Added GAF_hole_array_Accepted.pdf
  • Added Creator Bohan Zhang
  • Added Creator Dapeng He
  • Added Creator Qian Zhang
  • Added Creator Jiaxing Fang
  • Added Creator Xueguang Lu
  • Added Creator Wanxia Huang
  • Added Creator Zibo Chen
  • Added Creator Daping He
  • Added Creator Lei Kang
  • Added Creator Douglas H. Werner
  • Added Creator Shengxiang Wang
  • Published
  • Updated
  • Updated Keyword, Publication Date Show Changes
    Keyword
    • Plasmonics, Electrical conductivity, Terahertz radiation, Microwave frequencies, Multiphoton lithography, Graphene, Materials properties, Scanning electron microscopy
    Publication Date
    • 2024-06-03
    • 2024-06-06