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An all-optical multidirectional mechano-sensor inspired by biologically mechano-sensitive hair sensilla

Author

Listed:
  • Yuxiang Li

    (Fudan University)

  • Zhihe Guo

    (Fudan University)

  • Xuyang Zhao

    (Fudan University)

  • Sheng Liu

    (Fudan University)

  • Zhenmin Chen

    (Peng Cheng Laboratory (PCL))

  • Wen-Fei Dong

    (Chinese Academy of Sciences)

  • Shixiang Wang

    (Fudan University)

  • Yun-Lu Sun

    (Fudan University
    Chinese Academy of Sciences)

  • Xiang Wu

    (Fudan University
    Fudan University)

Abstract

Mechano-sensitive hair-like sensilla (MSHS) have an ingenious and compact three-dimensional structure and have evolved widely in living organisms to perceive multidirectional mechanical signals. Nearly all MSHS are iontronic or electronic, including their biomimetic counterparts. Here, an all-optical mechano-sensor mimicking MSHS is prototyped and integrated based on a thin-walled glass microbubble as a flexible whispering-gallery-mode resonator. The minimalist integrated device has a good directionality of 32.31 dB in the radial plane of the micro-hair and can detect multidirectional displacements and forces as small as 70 nm and 0.9 μN, respectively. The device can also detect displacements and forces in the axial direction of the micro-hair as small as 2.29 nm and 3.65 μN, respectively, and perceive different vibrations. This mechano-sensor works well as a real-time, directional mechano-sensory whisker in a quadruped cat-type robot, showing its potential for innovative mechano-transduction, artificial perception, and robotics applications.

Suggested Citation

  • Yuxiang Li & Zhihe Guo & Xuyang Zhao & Sheng Liu & Zhenmin Chen & Wen-Fei Dong & Shixiang Wang & Yun-Lu Sun & Xiang Wu, 2024. "An all-optical multidirectional mechano-sensor inspired by biologically mechano-sensitive hair sensilla," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47299-0
    DOI: 10.1038/s41467-024-47299-0
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    References listed on IDEAS

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