Reflected Wavefront Modulation with Phase Array by Using Acoustic Metasurface

被引：0

作者：

Cheng Y. ^{[1
]}

Liang Q. ^{[1
]}

Chen T. ^{[1
]}

Guo J. ^{[1
]}

机构：

[1] State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an

来源：

Transactions of Nanjing University of Aeronautics and Astronautics | 2019年 / 36卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Acoustic metasurface; Anomalous reflection; Phase gradient; Semi-closed and nested slotted tube;

D O I：

10.16356/j.1005-1120.2019.03.015

中图分类号：

学科分类号：

摘要：

Acoustic metasurface has attracted increasing attention due to the ability of manipulating the transmitted and reflected phase of waves to generate various acoustic functionalities with planar layer of sub-wavelength structure. We design an acoustic metasurface with a semi-closed and nested slotted tube array, and it possesses the capacity of modulating the reflected phase with sub-wavelength thickness (about λ/23). The reflected phase shifts can be obtained from 0 to 2π by different rotation angles of internal slotted tubes. The theoretical results agree well with the numerical results by a finite element method. The results show that some excellent wavefront manipulations are demonstrated with the phase array by using acoustic metasurface such as anomalous reflection and sub-wavelength flat focusing. The design may offer a path for acoustic manipulation and promote the potential applications of acoustic metasurface in low frequency noise control, acoustic imaging and cloaking. © 2019, Editorial Department of Transactions of NUAA. All right reserved.

引用

页码：510 / 516

页数：6

共 31 条

[1]

Yu X., Lu Z., Cheng L., Et al., On the sound insulation of acoustic metasurface using a sub-structuring approach, Journal of Sound and Vibration, 401, pp. 190-203, (2017)

[2]

Zhang H.L., Zhu Y.F., Liang B., Et al., Sound insulation in a hollow pipe with subwavelength thickness, Scientific Reports, 7, (2017)

[3]

Chen H., Anomalous reflection of acoustic waves in air with metasurfaces at low frequency, Advances in Condensed Matter Physics, 2018, (2018)

[4]

Chen X., Liu P., Hou Z., Et al., Implementation of acoustic demultiplexing with membrane-type metasurface in low frequency range, Applied Physics Letters, 110, 16, (2017)

[5]

Wanren S., Fei W., Jingyu H., Et al., Jet noise reduction of double-mixing exhaust system, Transactions of Nanjing University of Aeronautics and Astronautics, 33, 2, pp. 129-136, (2016)

[6]

Xie B., Cheng H., Tang K., Et al., Multiband asymmetric transmission of airborne sound by coded metasurfaces, Physical Review Applied, 7, 2, (2017)

[7]

Zhou Z., Li S., Li Y., Et al., Key techniques of ultrasonic phased array testing solution design and its application in aerospace, Journal of Nanjing University of Aeronautics & Astronautics, 49, 4, pp. 461-467, (2017)

[8]

Chen D.C., Zhu X.F., Wei Q., Et al., Asymmetric phase modulation of acoustic waves through unidirectional metasurfaces, Applied Physics A, 124, 1, (2018)

[9]

Jiang X., Liang B., Zou X.Y., Et al., Acoustic one-way metasurfaces: Asymmetric phase modulation of sound by subwavelength layer, Scientific Reports, 6, (2016)

[10]

Li Y., Shen C., Xie Y., Et al., Tunable asymmetric transmission via lossy acoustic metasurfaces, Physical Review Letters, 119, 3, (2017)

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