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Related Experiment Video

Updated: Jun 25, 2026

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Super-Resolution and High-Data-Density Acoustic Meta-Hologram via Amplitude and Phase Coupling.

Xiao Guo1, Xinzong Wang1, Guoshen Tang1

  • 1Jiangsu Key Laboratory for Design and Manufacturing of Precision Medicine Equipment, School of Mechanical Engineering, Southeast University, Nanjing, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|June 24, 2026
PubMed
Summary

This study introduces a new acoustic holography method for super-resolution imaging. It enhances image clarity and data density at low spatial bandwidth product (SBP) by using amplitude-phase coupling.

Keywords:
acoustic hologramacoustic holographic imagingacoustic metamaterialsacoustic metasurfacesamplitude and phase couplinghigh‐data‐density hologramsuper‐resolution hologram

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Area of Science:

  • Acoustics and Optics
  • Wave Physics
  • Image Processing

Background:

  • Acoustic holographic imaging resolution is limited by spatial bandwidth product (SBP) and diffraction.
  • Current acoustic meta-hologram techniques struggle with high-resolution imaging under finite SBP.
  • Overcoming diffraction limits is crucial for advanced acoustic imaging.

Purpose of the Study:

  • To develop a super-resolution and high data density holographic imaging method for low SBP.
  • To address the limitations of acoustic holography concerning resolution and data density at the diffraction limit.
  • To provide a theoretical and experimental basis for overcoming the diffraction limit in acoustic imaging.

Main Methods:

  • Proposed a method based on amplitude-phase coupling modulation mechanisms.
  • Derived a high-resolution focused phase distribution under acoustic energy conservation constraints.
  • Utilized coupled focused phases for super-resolution acoustic field reconstruction and high-data-density transmission.

Main Results:

  • Demonstrated super-resolution and high data density holographic imaging at low SBP.
  • Validated the proposed method through theoretical derivation, numerical simulation, and experimental results.
  • Achieved acoustic field reconstruction overcoming diffraction limits.

Conclusions:

  • The amplitude-phase coupling modulation method effectively enhances resolution and data density in acoustic holography.
  • This approach provides a pathway to high-resolution acoustic holograms under low data density conditions.
  • The study offers a significant advancement in overcoming the diffraction limit for acoustic imaging.