Three-Dimensional Broadband Acoustic Waveguide Cloak
Chuan-Jie Hu, Ya-Li Zeng, Yi-Neng Liu, Huan-Yang Chen**
Institute of Electromagnetics and Acoustics and Key Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen University, Xiamen 361005
Abstract ：The propagation of acoustic waves is a fundamental topic in shallow ocean acoustics. We numerically demonstrate a three-dimensional zone of silence consisting of a circular tube with gradient index metamaterials attached to its rigid wall. The cloaking effect is verified by fine agreement with analytical calculations.
收稿日期: 2020-02-29
出版日期: 2020-04-25
:
43.30.+m
(Underwater sound)
42.79.Ry
(Gradient-index (GRIN) devices)
02.60.Cb
(Numerical simulation; solution of equations)
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2020, Vol. 37 
