Acoustic manipulation through zero-thickness perforated plane with strong-coupling effects
Abstract
How to manipulate acoustic waves through thinner structures is always a challenging problem due to the linear proportional relationship between the structural thickness and the acoustic wavelength. Here, we show the possibility of breaking this relationship by the strong-coupling effects of the radiated waves on the zero-thickness two-dimensional perforated plane, rather than reducing the thickness of the three-dimensional structure by the resonance mechanism of the cavity structure. The strong-coupling effects can be achieved and regulated by the self and mutual radiation between acoustic waves from different holes in the zero-thickness plane. We experimentally demonstrate the effectiveness of our approach by implementing acoustic focusing and holography. Our work introduces a different perspective for manipulating acoustic waves and will enable the application of ultrathin acoustic devices.
Cite
@article{arxiv.1904.07427,
title = {Acoustic manipulation through zero-thickness perforated plane with strong-coupling effects},
author = {Liu-Ming Hao and Xin-Ye Zou and Bin Liang and Jian-Chun Cheng},
journal= {arXiv preprint arXiv:1904.07427},
year = {2019}
}