High-efficiency wide-angle anomalous refraction with acoustic metagrating

作     者：Kangyao Sun Yuancheng Fan Zhehao Ye Jiahui Li Quanhong Fu Yali Zeng Fuli Zhang 孙康瑶;樊元成;叶哲浩;李嘉荟;付全红;曾雅丽;张富利

作者机构：MOE Key Laboratory of Material Physics and Chemistry under Extraordinary ConditionsSchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710129China 

出 版 物：《Chinese Physics B》 (中国物理B(英文版))

年 卷 期：2025年第34卷第1期

页      面：368-372页

核心收录：

学科分类：070207[理学-光学] 07[理学] 082403[工学-水声工程] 08[工学] 070206[理学-声学] 0824[工学-船舶与海洋工程] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Project supported by the National Key Research and Development Program of China(Grant Nos.2023YFB3811400 and 2022YFB3806000) the National Natural Science Foundation of China(Grant No.12074314) the Science and Technology New Star Program of Shaanxi Province,China(Grant No.2023KJXX-148) the Fundamental Research Funds for the Central Universities 

主　　题：acoustic metagrating beam steering wide-angle anomalous refraction 

摘      要：The emergent metagrating,with its unique and flexible beam shaping capabilities,offers new paths to efficient modulation of acoustic *** this work,an acoustic metagrating is demonstrated for high-efficiency and wide-angle anomalous *** is shown that the normal reflection and transmission can be totally suppressed by properly modulating the amplitude and phase characteristics of the metagrating supercells for high-efficiency anomalous *** anomalous refraction behavior is achieved in the wide range of incident angles from 28°to 78°,and the efficiency of-1st order diffraction is higher than 90%by finely designing the metagrating *** anomalous refraction behaviors are verified experimentally at incidence angle of 28°,45°,and 78°,*** demonstrated metagrating is anticipated to possess efficient wide-angle composite wavefront engineering applications in such fields as communications.