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所属单位：理学院
发表刊物：Appl Phys Lett
摘要：In this work, we propose and demonstrate a simple acoustic metagrating with binary phase modulation that can be employed to achieve multifunctional reflection with high efficiency, including three-channel retroreflection, quasi-retroreflection, and specular reflection. Although only two sub-elements are designed for the acoustic metagratings, the efficiency of multifunctional reflection is well preserved. By changing the desired retroreflection angle, the incident range of quasi-retroreflection and specular reflection can be effectively tuned. Our work provides an alternative way for planar acoustic devices with versatility and enables the development of acoustic metasurfaces with a simplified design. © 2019 Author(s).
ISSN号：0003-6951
是否译文：否
发表时间：2019-02-04
合写作者：Cao, Yanyan,Xu, Yadong
通讯作者：伏洋洋