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  3. An Acoustic Meta-skin Insulator.
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An Acoustic Meta-Skin Insulator.

Lei Tong1, Zhu Xiong2, Ya-Xi Shen3

  • 1School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|July 23, 2020

View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed a superhydrophobic acoustic metasurface, or "meta-skin," enabling efficient underwater acoustic waveguiding. This breakthrough facilitates high-capacity underwater data transmission and has potential for medical imaging and treatment.

Keywords:
acoustic metasurfacessuperhydrophobicityunderwater acoustic waveguiding

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Area of Science:

  • Acoustic Metamaterials
  • Fluid Dynamics
  • Materials Science

Background:

  • Efficient acoustic waveguiding requires large impedance mismatches, which are challenging to achieve in underwater environments with current metamaterials.
  • Existing acoustic metamaterials struggle to provide sufficient impedance mismatch for effective underwater waveguiding.

Purpose of the Study:

  • To demonstrate a novel acoustic metasurface capable of efficient underwater acoustic waveguiding.
  • To enable high-capacity acoustic data transmission in underwater environments.
  • To explore potential applications in medical imaging and treatment.

Main Methods:

  • Fabrication of a superhydrophobic acoustic metasurface using a microstructured poly(vinylidene fluoride) membrane.
  • Utilizing the Cassie-Baxter state at air/water interfaces to create a significant impedance mismatch.
  • Demonstrating orbital-angular-momentum multiplexing and binary coding for acoustic data transmission.

    • Main Results:

    • The developed
    • meta-skin
    • insulator confines acoustic waves across all angles and a wide spectrum.", "Achieved broadband, high-throughput acoustic data transmission with orbital-angular-momentum multiplexing and binary coding in water.", "Demonstrated bit-error-free acoustic data transmission through large-angle bending channels."], "Conclusions": ["The superhydrophobic acoustic metasurface provides a viable solution for efficient underwater acoustic waveguiding.", "This technology offers a significant advancement for long-haul, anti-interference underwater communication systems.", "The findings have implications for various fluidic applications, including in vivo ultrasound medical treatment and imaging."]}, Meta_Description=
    • meta-skin
    • acoustic metasurface enables efficient underwater acoustic waveguiding and data transmission, with potential for medical applications.
    • Enhanced_Abstract.Area_of_Science
    • Enhanced_Abstract.Background
    • Enhanced_Abstract.Purpose_of_the_Study
    • Enhanced_Abstract.Main_Methods
    • Enhanced_Abstract.Main_Results
    • Enhanced_Abstract.Conclusions
    • Meta_Description
    • TL_DR

    Conclusions:

    • The superhydrophobic acoustic metasurface provides a viable solution for efficient underwater acoustic waveguiding.
    • This technology offers a significant advancement for long-haul, anti-interference underwater communication systems.
    • The findings have implications for various fluidic applications, including in vivo ultrasound medical treatment and imaging.