2017/11/14 by Minin, I. V., Tang, Q., Bhuyan, S. +2
#FOS: Physical sciences #General Physics (physics.gen-ph)
paper · doi:10.48550/arxiv.1712.01638
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.