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Sound trapping in an open resonator

Author

Listed:
  • Lujun Huang

    (University of New South Wales)

  • Yan Kei Chiang

    (University of New South Wales)

  • Sibo Huang

    (Tongji University)

  • Chen Shen

    (Rowan University)

  • Fu Deng

    (University of New South Wales)

  • Yi Cheng

    (Tongji University)

  • Bin Jia

    (Tongji University)

  • Yong Li

    (Tongji University)

  • David A. Powell

    (University of New South Wales)

  • Andrey E. Miroshnichenko

    (University of New South Wales)

Abstract

The ability of sound energy confinement with high-quality factor resonance is of vital importance for acoustic devices requiring high intensity and hypersensitivity in biological ultrasonics, enhanced collimated sound emission (i.e. sound laser) and high-resolution sensing. However, structures reported so far have been experimentally demonstrated with a limited quality factor of acoustic resonances, up to several tens in an open resonator. The emergence of bound states in the continuum makes it possible to realize high quality factor acoustic modes. Here, we report the theoretical design and experimental demonstration of acoustic bound states in the continuum supported by a single open resonator. We predicted that such an open acoustic resonator could simultaneously support three types of bound states in the continuum, including symmetry protected bound states in the continuum, Friedrich-Wintgen bound states in the continuum induced by mode interference, as well as a new type-mirror symmetry induced bound states in the continuum. We also experimentally demonstrated their existence with quality factor up to one order of magnitude greater than the highest quality factor reported in an open resonator.

Suggested Citation

  • Lujun Huang & Yan Kei Chiang & Sibo Huang & Chen Shen & Fu Deng & Yi Cheng & Bin Jia & Yong Li & David A. Powell & Andrey E. Miroshnichenko, 2021. "Sound trapping in an open resonator," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25130-4
    DOI: 10.1038/s41467-021-25130-4
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    Cited by:

    1. Felix Kronowetter & Marcus Maeder & Yan Kei Chiang & Lujun Huang & Johannes D. Schmid & Sebastian Oberst & David A. Powell & Steffen Marburg, 2023. "Realistic prediction and engineering of high-Q modes to implement stable Fano resonances in acoustic devices," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Haoyu Qin & Shaohu Chen & Weixuan Zhang & Huizhen Zhang & Ruhao Pan & Junjie Li & Lei Shi & Jian Zi & Xiangdong Zhang, 2024. "Optical moiré bound states in the continuum," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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