Related Experiment Video
Updated: Jun 12, 2026
06:51
Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
Published on: August 21, 2018
Reconfigurable acoustic coding metasurface for bidirectional wavefront manipulation across the water-air interface
Yan-Long Du1, Hong-Tao Zhou1, Chen-Yang Li1
1Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China.
Fundamental Research
|June 11, 2026
Summary
This study introduces a reconfigurable acoustic metasurface for efficient bidirectional sound control between water and air. It overcomes traditional limitations, enabling versatile acoustic functions for advanced communication and sensing applications.
Area of Science:
- Acoustics
- Metamaterials
- Wave Physics
Background:
- Bidirectional sound control across water-air interfaces is crucial for communication and sensing.
- Conventional methods face trade-offs between efficiency and phase tunability.
Purpose of the Study:
- To propose a reconfigurable acoustic coding metasurface for efficient bidirectional wavefront manipulation.
- To overcome limitations of traditional impedance matching techniques.
Main Methods:
- Developed a single-layer metasurface with discrete solid units.
- Utilized vibro-acoustic coupling and sidewall flexural vibrations for velocity transfer.
- Employed mechanical reconfiguration to switch acoustic functions.
Main Results:
- Achieved simultaneous high transmission efficiency and phase modulation.
- Demonstrated flexible switching among focusing, beam splitting, and Airy-beam generation.
- Validated performance through simulations and experiments.
Conclusions:
- The proposed metasurface offers versatile and reconfigurable bidirectional acoustic control.
- Opens possibilities for compact, programmable platforms in cross-domain acoustics.
- Enables advancements in intelligent acoustic communication and adaptive sensing.
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