One-way acoustic mirror based on anisotropic zero-index media

被引：14
|
作者：
Gu, Zhong-ming [1 ,2 ]
Liang, Bin [1 ,2 ]
Zou, Xin-ye [1 ,2 ,3 ]
Yang, Jing [1 ,2 ]
Li, Yong [4 ,5 ]
Yang, Jun [6 ]
Cheng, Jian-chun [1 ,2 ]
机构：
[1] Nanjing Univ, Dept Phys, Inst Acoust, Key Lab Modern Acoust,MOE, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[3] Chinese Acad Sci, State Key Lab Acoust, Beijing 100190, Peoples R China
[4] CNRS, Inst Jean Lamour, F-54506 Vandoeuvre Les Nancy, France
[5] Univ Lorraine, Inst Jean Lamour, F-54506 Vandoeuvre Les Nancy, France
[6] Chinese Acad Sci, Inst Acoust, Key Lab Noise & Vibrat Res, Beijing 100190, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 21期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.4936373
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have designed a one-way acoustic mirror comprising anisotropic zero-index media. For acoustic beam incident at a particular angle, the designed structure behaves like a high-efficient mirror that redirects almost all the incident energy into another direction predicted by the Snell's law, while becoming virtually transparent to beams propagating reversely along this output path. Furthermore, the mirror can be tailored to work at arbitrary incident angle by simply adjusting its geometry. Our design, with undirectional reflection functionality and flexible working angle, may offer possibilities in space isolations and have deep implication in various scenarios like ultrasound imaging or noise control. (C) 2015 AIP Publishing LLC.
引用
收藏
页数：5
相关论文
共 50 条
12345