3D acoustic metasurface carpet cloak based on groove structure units

被引：26

作者：

Ji, Wen-Qian ^{[1
]}

Wei, Qi ^{[1
,2
]}

Zhu, Xing-Feng ^{[1
,3
]}

Wu, Da-Jian ^{[1
,2
]}

机构：

[1] Nanjing Normal Univ, Sch Phys & Technol, Jiangsu Key Lab Optoelect Technol, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Univ, Sch Phys, Key Lab Modern Acoust MOE, Nanjing 210093, Jiangsu, Peoples R China

[3] Natl Univ Singapore, Sch Design & Environm, Singapore 117566, Singapore

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2019年 / 52卷 / 32期

基金：

中国国家自然科学基金;

关键词：

acoustic carpet cloak; acoustic metasurface; groove structure; REFLECTION;

D O I：

10.1088/1361-6463/ab216a

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A 3D acoustic metasurface carpet cloak (AMCC) based on groove structure units is proposed and investigated. The key idea behind this acoustic invisibility is the phase compensation via local phase modulation, and thus a cloak with a thickness of only of a half wavelength could be designed for objects with arbitrary geometric shapes and sizes. We first demonstrate the cloaking effect of hiding a conical object numerically, and find that the working bandwidth of the designed AMCC is from 6200-7500 Hz. Further experimental results are in good agreement with the numerical simulations, verifying that the AMCC works well for the normal incident wave and the small-angled incident waves. As another example, we also confirm that the proposed AMCC can hide a semispherical object. The present AMCC is thin, has a simple geometrical structure, and is easy to implement, which benefits future realistic applications.

引用

页数：7

共 30 条

[11] Experiments on metasurface carpet cloaking for audible acoustics [J].

Faure, Cedric ;

Richoux, Olivier ;

Felix, Simon ;

Pagneux, Vincent .

APPLIED PHYSICS LETTERS, 2016, 108 (06)

[12] Engineered Diffraction Gratings for Acoustic Cloaking [J].

Jin, Yabin ;

Fang, Xinsheng ;

Li, Yong ;

Torrent, Daniel .

PHYSICAL REVIEW APPLIED, 2019, 11 (01)

[13] Hiding under the Carpet: A New Strategy for Cloaking [J].

Li, Jensen ;

Pendry, J. B. .

PHYSICAL REVIEW LETTERS, 2008, 101 (20)

[14] Reflected wavefront manipulation based on ultrathin planar acoustic metasurfaces [J].

Li, Yong ;

Liang, Bin ;

Gu, Zhong-ming ;

Zou, Xin-ye ;

Cheng, Jian-chun .

SCIENTIFIC REPORTS, 2013, 3

[15]

Ma GC, 2014, NAT MATER, V13, P873, DOI [10.1038/nmat3994, 10.1038/NMAT3994]

[16] Controllable transmission and total reflection through an impedance-matched acoustic metasurface [J].

Mei, Jun ;

Wu, Ying .

NEW JOURNAL OF PHYSICS, 2014, 16

[17] An ultrathin invisibility skin cloak for visible light [J].

Ni, Xingjie ;

Wong, Zi Jing ;

Mrejen, Michael ;

Wang, Yuan ;

Zhang, Xiang .

SCIENCE, 2015, 349 (6254) :1310-1314

[18] Experimental Acoustic Ground Cloak in Air [J].

Popa, Bogdan-Ioan ;

Zigoneanu, Lucian ;

Cummer, Steven A. .

PHYSICAL REVIEW LETTERS, 2011, 106 (25)

[19] Anomalous refraction of airborne sound through ultrathin metasurfaces [J].

Tang, Kun ;

Qiu, Chunyin ;

Ke, Manzhu ;

Lu, Jiuyang ;

Ye, Yangtao ;

Liu, Zhengyou .

SCIENTIFIC REPORTS, 2014, 4

[20] Broadband acoustic skin cloak based on spiral metasurfaces [J].

Wang, Xu ;

Mao, Dongxing ;

Li, Yong .

SCIENTIFIC REPORTS, 2017, 7

← 1 2 3 →