Full-angle negative reflection realized by a gradient acoustic metasurface
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影响因子：1.697
DOI码：10.1063/1.4967430
发表刊物：AIP Advances
摘要：We theoretically demonstrate that full-angle negative reflection can be realized by the gradient acoustic metasurface with a specific surface phase gradient value. A straightforward physical picture is presented here to understand such anomalous phenomena by considering the influence of the non-local effect that originates from the supercell periodicity on the gradient metasurface. Basing on the generalized law of reflection which is modified by a reciprocal lattice vector term, the negative reflection that beyond the critical angle is possible. In this paper, we utilize the coiling-up space structures of deep subwavelength geometrical scale to construct the desired gradient acoustic metasurface and observe the apparent full-angle negative reflection phenomenon. The present work enriches the content of the generalized law of reflection and provide new design methodology for functional acoustic wave modulation devices, such like directional ground acoustic cloaking and acoustic isolation devices.
合写作者：Wenyu Zhao
第一作者：Bingyi Liu
论文类型：期刊论文
通讯作者：Yongyuan Jiang
论文编号：000392082600043
学科门类：理学
文献类型：J
卷号：6
期号：11
字数：3000
ISSN号：ISSN 2158-3226
是否译文：否
发表时间：2017-02-08
收录刊物：SCI
发布期刊链接：https://aip.scitation.org/doi/10.1063/1.4967430
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