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Bidirectional mid-infrared communications between two identical macroscopic graphene fibres

Author

Listed:
  • Bo Fang

    (Zhejiang University)

  • Srikrishna Chanakya Bodepudi

    (Zhejiang University)

  • Feng Tian

    (Zhejiang University
    Zhejiang University/University of Illinois at Urbana-Champaign Joint Institute (ZJU-UIUC), Zhejiang University)

  • Xinyu Liu

    (Zhejiang University)

  • Dan Chang

    (Zhejiang University)

  • Sichao Du

    (Zhejiang University)

  • Jianhang Lv

    (Zhejiang University)

  • Jie Zhong

    (Zhejiang University)

  • Haiming Zhu

    (Zhejiang University)

  • Huan Hu

    (Zhejiang University/University of Illinois at Urbana-Champaign Joint Institute (ZJU-UIUC), Zhejiang University)

  • Yang Xu

    (Zhejiang University
    Zhejiang University/University of Illinois at Urbana-Champaign Joint Institute (ZJU-UIUC), Zhejiang University)

  • Zhen Xu

    (Zhejiang University)

  • Weiwei Gao

    (Zhejiang University)

  • Chao Gao

    (Zhejiang University)

Abstract

Among light-based free-space communication platforms, mid-infrared (MIR) light pertains to important applications in biomedical engineering, environmental monitoring, and remote sensing systems. Integrating MIR generation and reception in a network using two identical devices is vital for the miniaturization and simplification of MIR communications. However, conventional MIR emitters and receivers are not bidirectional due to intrinsic limitations of low performance and often require cryogenic cooling. Here, we demonstrate that macroscopic graphene fibres (GFs) assembled from weakly-coupled graphene layers allow room-temperature MIR detection and emission with megahertz modulation frequencies due to the persistence of photo-thermoelectric effect in millimeter-length and the ability to rapidly modulate gray-body radiation. Based on the dual-functionality of GFs, we set up a system that conducts bidirectional data transmission by switching modes between two identical GFs. The room-temperature operation of our systems and the potential to produce GFs on industrial textile-scale offer opportunities for simplified and wearable optical communications.

Suggested Citation

  • Bo Fang & Srikrishna Chanakya Bodepudi & Feng Tian & Xinyu Liu & Dan Chang & Sichao Du & Jianhang Lv & Jie Zhong & Haiming Zhu & Huan Hu & Yang Xu & Zhen Xu & Weiwei Gao & Chao Gao, 2020. "Bidirectional mid-infrared communications between two identical macroscopic graphene fibres," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-20033-2
    DOI: 10.1038/s41467-020-20033-2
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