A Method to Improve the Resolution of the Acoustic Microscopy

TL;DR

This paper introduces a novel method to enhance acoustic microscopy resolution by using sub-wavelength focusing through mesoscale particles, verified via FEM simulation.

Contribution

It presents a new principle for acoustic microscopy resolution enhancement based on sub-wavelength focusing with mesoscale particles.

Findings

FEM simulation confirms sub-wavelength focusing effect.

Resolution of acoustic microscopy can be improved below one wavelength.

New principle offers potential for higher-resolution acoustic imaging.

Abstract

In this report, we demonstrate a new principle to improve the resolution of the acoustic microscopy, which is based on the sub-wavelength focusing of acoustic wave passing through an acoustically transparent mesoscale particle. In the principle, the width of the acoustic focal area can be less than one wavelength. The sub-wavelength focusing effect is verified by the FEM simulation.