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第 37 卷 第 5 期 Vol. 37, No.5
2018 年 9 月 Journal of Applied Acoustics September, 2018

纪念应崇福院士诞辰100周年

基于相位调控的超高透射声学超表面及其应用 ∗

田 野 左淑毓 程 营 刘晓峻 †

(南京大学物理学院 南京 210093)

摘要 声学超表面可以灵活有效地对声波进行调控，实现多种新颖的现象和功能，在诸多声波调控领域有潜
在的应用前景。该文引入了一种镀膜型迷宫结构单元，可以提供全范围 (0 ∼ 2π) 的突变相位，具有高效的透
射率 (∼ 100%) 和较好的鲁棒性。基于相位调控，可利用镀膜型迷宫结构单元构建出超高透射超表面，实现异
常声折射、声聚焦、声束沿任意凸轨迹弯曲传播以及声成像等应用。
关键词 超表面，声波调控，相位调控，迷宫结构，高透射
中图法分类号: O42 文献标识码: A 文章编号: 1000-310X(2018)05-0691-10
DOI: 10.11684/j.issn.1000-310X.2018.05.013

Phase-controlled acoustic metasurface with high efficiency and its applications

TIAN Ye ZUO Shuyu CHENG Ying LIU Xiaojun

(Department of Physics, Nanjing University, Nanjing 210093, China)

Abstract Acoustic metasurfaces can control sound waves flexibly and effectively, and realize a variety of
novel phenomena and functions, which makes it show a great application prospect in many acoustic wave
control fields. In the paper, authors introduce a coated labyrinthine structure (CLS), which can provide a full
phase-controlled range (0 ∼ 2π) and a high transmittance (∼ 100%), and features a good robustness. Based
on the CLS units authors construct the phase-controlled acoustic metasurfaces with high efficiency. Based
on the constructed metasurfaces, authors realize the applications of phase control such as acoustic anomalous
refraction, acoustic focusing, acoustic beam bending along any convex trajectory, and acoustic imaging.
Key words Metasurface, Acoustic control, Phase control, Labyrinthine structure, High transmission

2018-05-30 收稿; 2018-07-13 定稿
国家自然科学基金项目 (11674172, 11574148, 11474162)
∗
作者简介: 田野 (1990- ), 男, 黑龙江黑河人, 博士研究生, 研究方向: 声学人工材料。
† 通讯作者 E-mail: liuxiaojun@nju.edu.cn