Please wait a minute...
Chin. Phys. B, 2018, Vol. 27(12): 124302    DOI: 10.1088/1674-1056/27/12/124302
SPECIAL TOPIC—60th Anniversary of Department of Physics of Nanjing Normal University Prev   Next  

Bidirectional asymmetric acoustic focusing with two flat acoustic metasurfaces

Di-Chao Chen(陈帝超), Xing-Feng Zhu(朱兴凤), Qi Wei(魏琦), Da-Jian Wu(吴大建)
Jiangsu Key Laboratory on Opto-Electronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China
Abstract  

We design an asymmetric transmission system (ATS) with two flat acoustic metasurfaces (AMs) to yield bidirectional asymmetric acoustic focusing (BAAF). The acoustic waves could be focused on both sides of the ATS with different focal lengths and intensities. To achieve high intensity energy concentration, the accelerating acoustic beams are selected to realize the BAAF. The working bandwidth of the BAAF based on our ATS could reach~0.4 kHz. It is found that by adjusting the distance between two flat AMs, the focal length and intensity of the bidirectional focusing could easily be modulated. Because the distance between two flat AMs is large enough, the BAAF even could be converted into a unidirectional acoustic focusing. The proposed BAAF may find applications in non-destructive evaluation, biomedical imaging and medical diagnosis.

Keywords:  asymmetric focusing      acoustic metasurface      phase manipulation  
Received:  15 August 2018      Revised:  11 September 2018      Published:  05 December 2018
PACS:  43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound)  
  43.25.+y (Nonlinear acoustics)  
  43.38.+n (Transduction; acoustical devices for the generation and reproduction of sound)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant Nos. 11704193, 11674175, and 11704192), the “333” Project of Jiangsu Province, China (Grant No. BRA2017451), and the Postgraduate Research & Practice Innovation Program of Jiangsu Province, China (Grant No. KYCX18_1185).

Corresponding Authors:  Xing-Feng Zhu, Da-Jian Wu     E-mail:  zhuxingfeng@njnu.edu.cn;wudajian@njnu.edu.cn

Cite this article: 

Di-Chao Chen(陈帝超), Xing-Feng Zhu(朱兴凤), Qi Wei(魏琦), Da-Jian Wu(吴大建) Bidirectional asymmetric acoustic focusing with two flat acoustic metasurfaces 2018 Chin. Phys. B 27 124302

[1] Zhu H F and Semperlotti F 2016 Phys. Rev. Lett. 117 034302
[2] Xie Y B, Wang W Q, Chen H Y, Konneker A, Popa B I and Cummer S A 2014 Nat. Commun. 5 5553
[3] Li Y, Jiang X, Li R Q, Liang B, Zou X Y, Yin L L and Cheng J C 2014 Phys. Rev. Appl. 2 064002
[4] Mei J and Wu Y 2014 New J. Phys. 16 123007
[5] Memoli G, Caleap M, Asakawa M, Sahoo D R, Drinkwater B W and Subramanian S 2017 Nat. Commun. 8 14608
[6] Xie B Y, Tang K, Cheng H, Liu Z Y, Chen S Q and Tian J G 2017 Adv. Mater. 29 1603507
[7] Xie B Y, Cheng H, Tang K, Liu Z Y, Chen S Q and Tian J G 2017 Phys. Rev. Appl. 7 024010
[8] Li Y, Shen C, Xie Y B, Li J F, Wang W Q, Cummer S A and Jing Y 2017 Phys. Rev. Lett. 119 035501
[9] Li Y, Liang B, Tao X, Zhu X F, Zou X Y and Cheng J C 2012 Appl. Phys. Lett. 101 233508
[10] Yuan B G, Cheng Y and Liu X J 2015 Appl. Phys. Express 8 027301
[11] Xie Y B, Shen C, Wang W Q, Li J F, Suo D J, Popa B I, Jing Y and Cummer S A 2016 Sci. Rep. 6 35437
[12] Tang K, Qiu C Y, Ke M Z, Lu J Y, Ye Y T and Liu Z Y 2015 Sci. Rep. 4 6517
[13] Zhu Y F, Zou X Y, Li R Q, Jiang X, Tu J, Liang B and Cheng J C 2015 Sci. Rep. 5 10966
[14] Christensen J, RomeroGarcía V, Picó R, Cebrecos A, GarcíadeAbajo F J, Mortensen N A, Willatzen M and SánchezMorcillo V J 2015 Sci. Rep. 4 4674
[15] Chen D C, Zhu X F, Wei Q, Wu D J and Liu X J 2018 Appl. Phys. A 124 13
[16] Shen C, Xie Y B, Li J F, Cummer S A and Jing Y 2016 Appl. Phys. Lett. 108 223502
[17] Jiang X, Liang B, Zou X Y, Yang J, Yin L L, Yang J, Cheng J C 2016 Sci. Rep. 6 28023
[18] Liu B Y and Jiang Y Y 2018 Appl. Phys. Lett. 112 173503
[19] Molerón M, Serra-Garcia M and Daraio C 2014 Appl. Phys. Lett. 105 114109
[20] Climente A, Torrent D and SánchezDehesa J 2010 Appl. Phys. Lett. 97 104103
[21] Zhao J J, Ye H P, Huang K, Chen Z N, Li B W and Qiu C W 2015 Sci. Rep. 4 6257
[22] Zigoneanu L, Popa B I and Cummer S A 2011 Phys. Rev. B 84 024305
[23] Cervera F, Sanchis L, SánchezPérez J V, MartínezSala R, Rubio C and Meseguer F 2001 Phys. Rev. Lett. 88 023902
[24] Chen D C, Zhu X F, Wei Q, Wu D J and Liu X J 2018 J. Appl. Phys. 123 044503
[25] Wang W Q, Xie Y B, Konneker A, Popa B I and Cummer S A 2014 Appl. Phys. Lett. 105 101904
[26] Li Y, Qi S B and Assouar M B 2016 New J. Phys. 18 043024
[27] Xia J P, Zhang X T, Sun H X, Yuan S Q, Qian J and Ge Y 2018 Phys. Rev. Appl. 10 014016
[28] Epstein I and Arie A 2014 Phys. Rev. Lett. 112 023903
[29] Greenfield E, Segev M, Walasik W and Raz O 2011 Phys. Rev. Lett. 106 213902
[30] Tian Y, Wei Q, Cheng Y and Liu X J 2017 Appl. Phys. Lett. 110 191901
[31] Chen D C, Zhu X F, Wei Q, Wu D J and Liu X J 2018 Sci. Rep. 8 12682
[1] Thermoacoustic-reflected focusing lens based on acoustic Bessel-like beam with phase manipulation
An-Ru Hou(侯安茹), Wen-Ting Gao(高文婷), Jiao Qian(钱姣), Hong-Xiang Sun(孙宏祥), Yong Ge(葛勇), Shou-Qi Yuan(袁寿其), Qiao-Rui Si(司乔瑞), Xiao-Jun Liu(刘晓峻). Chin. Phys. B, 2018, 27(12): 124301.
[2] Broadband acoustic focusing by symmetric Airy beams with phased arrays comprised of different numbers of cavity structures
Jiao Qian(钱姣), Bo-Yang Liu(刘博阳), Hong-Xiang Sun(孙宏祥), Shou-Qi Yuan(袁寿其), Xiao-Zhu Yu(俞笑竹). Chin. Phys. B, 2017, 26(11): 114304.
No Suggested Reading articles found!