Reflected continuously tunable acoustic metasurface with rotatable space coiling-up structure
Applied Physics
2020-02-11 v1 Materials Science
Abstract
In this paper, we propose a continuously tunable acoustic metasurface composed of identical anisotropic resonant units, each of which contains a rigid pedestal and a rotatable inclusion with space coiling-up structure. The metasurface can manipulate the reflected phase by adjusting the rotational angle of inclusion. The theoretical analysis shows that the polarization-dependent phase change can be induced by the even-order standing wave modes inside inclusion. By utilizing the rotatable inclusion, we design a tunable acoustic carpet cloaking device, which works with a wide range for incident angle. When incident waves come from different directions, the cloaking effect can be obtained by arrange the rotational angle of each inclusion.
Keywords
Cite
@article{arxiv.2002.03587,
title = {Reflected continuously tunable acoustic metasurface with rotatable space coiling-up structure},
author = {Haozhen Zou and Yanlong Xu and Pan Li and Pai Peng},
journal= {arXiv preprint arXiv:2002.03587},
year = {2020}
}