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Metamaterial-based real-time communication with high information density by multipath twisting of acoustic wave

Author

Listed:
  • Kai Wu

    (Nanjing University)

  • Jing-Jing Liu

    (Nanjing University)

  • Yu-jiang Ding

    (Nanjing University)

  • Wei Wang

    (Nanjing University)

  • Bin Liang

    (Nanjing University)

  • Jian-Chun Cheng

    (Nanjing University)

Abstract

Speeding up the transmission of information carried by waves is of fundamental interest for wave physics, with pivotal significance for underwater communications. To overcome the current limitations in information transfer capacity, here we propose and experimentally validate a mechanism using multipath sound twisting to realize real-time high-capacity communication free of signal-processing or sensor-scanning. The undesired channel crosstalk, conventionally reduced via time-consuming postprocessing, is virtually suppressed by using a metamaterial layer as purely-passive demultiplexer with high spatial selectivity. Furthermore, the compactness of system ensures high information density crucial for acoustics-based applications. A distinct example of complicated image transmission is experimentally demonstrated, showing as many independent channels as the path number multiplied by vortex mode number and an extremely-low bit error rate nearly 1/10 of the forward error correction limit. Our strategy opens an avenue to metamaterial-based high-capacity communication paradigm compatible with the conventional multiplexing mechanisms, with far-reaching impact on acoustics and other domains.

Suggested Citation

  • Kai Wu & Jing-Jing Liu & Yu-jiang Ding & Wei Wang & Bin Liang & Jian-Chun Cheng, 2022. "Metamaterial-based real-time communication with high information density by multipath twisting of acoustic wave," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32778-z
    DOI: 10.1038/s41467-022-32778-z
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    References listed on IDEAS

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    1. Yan Yan & Guodong Xie & Martin P. J. Lavery & Hao Huang & Nisar Ahmed & Changjing Bao & Yongxiong Ren & Yinwen Cao & Long Li & Zhe Zhao & Andreas F. Molisch & Moshe Tur & Miles J. Padgett & Alan E. Wi, 2014. "High-capacity millimetre-wave communications with orbital angular momentum multiplexing," Nature Communications, Nature, vol. 5(1), pages 1-9, December.
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    Cited by:

    1. Dongwoo Lee & Beomseok Oh & Jeonghoon Park & Seong-Won Moon & Kilsoo Shin & Sea-Moon Kim & Junsuk Rho, 2024. "Wide field-of-hearing metalens for aberration-free sound capture," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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