中国物理B ›› 2022, Vol. 31 ›› Issue (9): 94302-094302.doi: 10.1088/1674-1056/ac7868

所属专题: TOPICAL REVIEW — Celebrating 30 Years of Chinese Physics B

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Controlling acoustic orbital angular momentum with artificial structures: From physics to application

Wei Wang(王未), Jingjing Liu(刘京京), Bin Liang (梁彬), and Jianchun Cheng(程建春)   

  1. Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • 收稿日期:2022-04-18 修回日期:2022-06-08 接受日期:2022-06-14 出版日期:2022-08-19 发布日期:2022-09-06
  • 通讯作者: Bin Liang, Jianchun Cheng E-mail:liangbin@nju.edu.cn;jccheng@nju.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0303700), the National Natural Science Foundation of China (Grant Nos. 11634006 and 81127901), the Fund from the HighPerformance Computing Center of Collaborative Innovation Center of Advanced Microstructures, and the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Controlling acoustic orbital angular momentum with artificial structures: From physics to application

Wei Wang(王未), Jingjing Liu(刘京京), Bin Liang (梁彬), and Jianchun Cheng(程建春)   

  1. Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • Received:2022-04-18 Revised:2022-06-08 Accepted:2022-06-14 Online:2022-08-19 Published:2022-09-06
  • Contact: Bin Liang, Jianchun Cheng E-mail:liangbin@nju.edu.cn;jccheng@nju.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0303700), the National Natural Science Foundation of China (Grant Nos. 11634006 and 81127901), the Fund from the HighPerformance Computing Center of Collaborative Innovation Center of Advanced Microstructures, and the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘要: Acoustic orbital angular momentum (OAM) associated with helicoidal wavefront recently attracts rapidly-growing attentions, offering a new degree of freedom for acoustic manipulation. Due to the unique dynamical behavior and inherent mode orthogonality of acoustic OAM, its harnessing is of fundamental interests for wave physics, with great potential in a plethora of applications. The recent advance in materials physics further boosts efforts into controlling OAM-carrying acoustic vortices, especially acoustic metasurfaces with planar profile and subwavelength thickness. Thanks to their unconventional acoustic properties beyond attainable in the nature, acoustic artificial structures provide a powerful platform for new research paradigm for efficient generation and diverse manipulation of OAM in ways not possible before, enabling novel applications in diverse scenarios ranging from underwater communication to object manipulation. In this article, we present a comprehensive view of this emerging field by delineating the fundamental physics of OAM-metasurface interaction and recent advances in the generation, manipulation, and application of acoustic OAM based on artificial structures, followed by an outlook for promising future directions and potential practical applications.

关键词: acoustic orbital angular momentum, acoustic metamaterials, acoustic metasurfaces, acoustic communications

Abstract: Acoustic orbital angular momentum (OAM) associated with helicoidal wavefront recently attracts rapidly-growing attentions, offering a new degree of freedom for acoustic manipulation. Due to the unique dynamical behavior and inherent mode orthogonality of acoustic OAM, its harnessing is of fundamental interests for wave physics, with great potential in a plethora of applications. The recent advance in materials physics further boosts efforts into controlling OAM-carrying acoustic vortices, especially acoustic metasurfaces with planar profile and subwavelength thickness. Thanks to their unconventional acoustic properties beyond attainable in the nature, acoustic artificial structures provide a powerful platform for new research paradigm for efficient generation and diverse manipulation of OAM in ways not possible before, enabling novel applications in diverse scenarios ranging from underwater communication to object manipulation. In this article, we present a comprehensive view of this emerging field by delineating the fundamental physics of OAM-metasurface interaction and recent advances in the generation, manipulation, and application of acoustic OAM based on artificial structures, followed by an outlook for promising future directions and potential practical applications.

Key words: acoustic orbital angular momentum, acoustic metamaterials, acoustic metasurfaces, acoustic communications

中图分类号:  (General linear acoustics)

  • 43.20.+g
43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound)