Nature Communications (Mar 2022)

Active control of micrometer plasmon propagation in suspended graphene

  • Hai Hu,
  • Renwen Yu,
  • Hanchao Teng,
  • Debo Hu,
  • Na Chen,
  • Yunpeng Qu,
  • Xiaoxia Yang,
  • Xinzhong Chen,
  • A. S. McLeod,
  • Pablo Alonso-González,
  • Xiangdong Guo,
  • Chi Li,
  • Ziheng Yao,
  • Zhenjun Li,
  • Jianing Chen,
  • Zhipei Sun,
  • Mengkun Liu,
  • F. Javier García de Abajo,
  • Qing Dai

DOI
https://doi.org/10.1038/s41467-022-28786-8
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 9

Abstract

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Graphene plasmons hold potential for infrared optoelectronic devices, but the interaction with the substrate often degrades their quality. Here, the authors report the characterization of plasmons in suspended graphene with tunable suspension height, showing enhanced quality factors and propagation lengths at room temperature.