声学/弹性相位梯度超表面设计:原理、功能基元、可调和编码  

Design of acoustic/elastic phase gradient metasurfaces:Principles,functional elements,tunability,and coding

作　　者：陈阿丽 汪越胜[1,2] 王艳锋 周红涛 袁思敏 CHEN Ali;WANG Yuesheng;WANG Yanfeng;ZHOU Hongtao;YUAN Simin(Department of Mechanics,Beijing Jiaotong University,Beijing 100044,China;Department of Mechanics,Tianjin University,Tianjin 300350,China)

机构地区：[1]北京交通大学力学系,北京100044 [2]天津大学力学系,天津300350

出　　处：《力学进展》2022年第4期948-1011,共64页Advances in Mechanics

基　　金：国家自然科学基金(11972246,11872101,12021002,11991031,12122207和12072223)资助项目。

摘　　要：声学/弹性超表面是一类亚波长厚度的二维超材料,具有很强的声波/弹性波操控能力,在声学成像、通信、隐身、伪装、振动/噪声控制、能量收集、无损检测等领域具有潜在的应用.本文主要综述了声学/弹性相位梯度超表面的最新发展,包括设计原理、功能基元设计、波场操控及其应用、可调超表面设计,以及新兴的数字编码超表面.最后,展望了该领域未来的研究方向.Acoustic/elastic metasurfaces as a kind of two-dimensional metamaterials are of subwavelength thickness and show remarkable ability of acoustic/elastic wave manipulation.They have potential applications in various fields such as acoustic imaging,communications,cloaking,camouflage,vibration/noise control,energy harvesting,and nondestructive testing.In this review,we mainly summarize recent developments in acoustic/elastic phase gradient metasurfaces,including design principles,design of functional elements,wave field manipulation with applications,design of tunable metasurfaces,as well as the emerging digital coding metasurfaces.At last,we outline the future research directions in this field.

关 键 词：弹性波 声波 超材料 声学超表面 弹性超表面 相位梯度 可调性 可重构性 数字编码 波前调控 

分 类 号：O422[理学—声学]