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声学超构材料作为一种新型的人工结构材料, 拥有天然材料所不具备的超常物理特性, 进一步拓展了材料的声学属性. 同时, 声学超构材料可以实现对声波精准的、可设计的操控, 以及许多新颖奇特的物理现象, 如声准直、声聚焦、声场隐身、声单向传输、声学超分辨成像等, 具有重要的理论研究意义和应用价值. 另外, 拓扑材料的研究已延伸至声学领域, 声学超构材料的拓扑性质成为近年的研究热点, 受到人们的广泛关注. 其鲁棒性边界态具有缺陷免疫、背散射抑制的特性, 应用潜力巨大. 本文综述了近十几年来声学超构材料的研究概况, 介绍了相关的代表性工作, 包括奇异等效声学参数的超构材料、声学超构表面、吸声超构材料、声学超分辨成像、宇称时间对称性声学和拓扑声学等, 阐述了声学超构材料的设计理念和方法, 并对其技术挑战和应用前景进行了讨论和总结.Acoustic metamaterials have opened up unprecedented possibilities for wave manipulation, and can be utilized to realize many novel and fascinating physical phenomena, such as acoustic self-collimation, cloaking, asymmetric transmission, and negative refraction. In this review, we explore the fundamental physics of acoustic metamaterials and introduce several exciting developments, including the realization of unconventional effective parameters, acoustic metasurface, total sound absorption, high-resolution imaging, parity-time-symmetric materials, and topological acoustics. Acoustic metamatetials with negative effective parameters that are not observed in nature expand acoustic properties of natural materials. Acoustic metasurfaces can exhibit wavefront-shaping capabilities, with thickness being much smaller than the wavelength. The precisely designed matematerials provide the new possibility of steering waves on a subwavelength scale, which can be used for acoustic high-resolution imaging beyond the diffraction limit. The metamaterial absorbers can achieve total sound absorption at low frequencies and exhibit broadband absorption spectrum. Moreover, structure designs guided by the topological physics further broaden the whole field of acoustic metamaterials. Phononic crystals have become aflexible platform for studying new physics and exotic phenomenarelated to topological phases. Finally, we conclude the developments of acoustic metamaterials, discuss the technical challenges, and introduce potential applications in this emerging field.
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Keywords:
- acoustic metamaterials /
- phononic crystals /
- topological acoustics /
- high-resolution imaging
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图 1 弹性模量ρ和体弹性模量K的参数空间图 (a) 负质量密度超构材料, ρ < 0, K > 0; (b) 天然材料, ρ > 0, K > 0; (c) 双负超构材料, ρ < 0, K < 0; (d) 负体弹性模量超构材料, ρ > 0, K < 0
Fig. 1. Parameter space for mass density ρ and bulk modulus K: (a) Metamaterials with negative effective mass density, ρ < 0, K > 0; (b) natural materials, ρ > 0, K > 0; (c) double-negative metamaterials, ρ < 0, K < 0; (d) metamaterials with negative effective bulk modulus, ρ > 0, K < 0
图 3 声学超构表面的三种典型形式及其物理效应 (a)反射型超构表面; (b)透射型超构表面; (c)吸收型超构表面;(d)自弯曲波束调控; (e)声学全息成像; (f)低频完美吸声体
Fig. 3. Three typical forms of acoustic metasurfaces and their physical effects: (a) Reflective metasurfaces; (b) transmissive metasurfaces; (c) absorbing metasurfaces; (d) the self-bending beam; (e) acoustic holographic imaging; (f) perfect sound absorber at low frequency
图 6 (a)引入环流的声学陈绝缘体及其投影能带; (b)基于模式杂化的声学拓扑绝缘体结构及其投影能带; (c)引入滑移对称性的三维拓扑声子晶体及其投影能带
Fig. 6. (a) Acoustic topological Chern insulator by incorporating the circulating flow and its projected energy band; (b) acoustic topological insulator based on hybridized modes and its projected energy band; (c) three-dimensional topological acoustic crystals with glide symmetry and its projected energy band.
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[1] Liu Z Y, Zhang X X, Mao Y W, Zhu Y Y, Yang Z, Chan C T, Sheng P 2000 Science 289 1734Google Scholar
[2] Zheludev N I, Kivshar Y S 2012 Nat. Mater. 11 917Google Scholar
[3] Cummer S A, Christensen J, Alù A 2016 Nat. Rev. Mater. 1 16001Google Scholar
[4] Pendry J B 2000 Phys. Rev. Lett. 85 3966Google Scholar
[5] Kaina N, Lemoult F, Fink M, Lerosey G 2015 Nature 525 77Google Scholar
[6] Yang Z Y, Mei J, Yang M, Chan N, Sheng P 2008 Phys. Rev. Lett. 101 204301Google Scholar
[7] Fang N, Xi D, Xu J, Ambati M, Srituravanich W, Sun C, Zhang X 2006 Nat. Mater. 5 452Google Scholar
[8] Christensen J, Martín-Moreno L, García-Vidal F J 2010 Appl. Phys. Lett. 97 134106Google Scholar
[9] Li J, Chan C T 2004 Phys. Rev. E 70 055602Google Scholar
[10] Lee S H, Park C M, Seo Y M, Wang Z G, Kim C K 2010 Phys. Rev. Lett. 104 054301Google Scholar
[11] Brunet T, Merlin A, Mascaro B, Zimny K, Leng J, Poncelet O, Aristégui C, Mondain-Monval O 2015 Nat. Mater. 14 384
[12] Liang Z X, Li J S 2012 Phys. Rev. Lett. 108 114301Google Scholar
[13] Xie Y B, Popa B, Zigoneanu L, Cummer S A 2013 Phys. Rev. Lett. 110 175501Google Scholar
[14] Christensen J, de Abajo F J G 2012 Phys. Rev. Lett. 108 124301Google Scholar
[15] García-Chocano V M, Christensen J, Sánchez-Dehesa J 2014 Phys. Rev. Lett. 112 144301Google Scholar
[16] Fleury R, Alù A 2013 Phys. Rev. Lett. 111 055501Google Scholar
[17] Liberal I, Engheta N 2017 Nat. Photon. 11 149Google Scholar
[18] Dubois M, Shi C Z, Zhu X F, Wang Y, Zhang X 2017 Nat. Commun. 8 14871Google Scholar
[19] Assouar B, Liang B, Wu Y, Li Y, Cheng J C, Jing Y 2018 Nat. Rev. Mater. 3 460Google Scholar
[20] Yu N, Genevet P, Kats M A, Aieta F, Tetienne J P, Capasso F, Gaburro Z 2011 Science 334 333Google Scholar
[21] Li Y, Liang B, Gu Z M, Zou X Y, Cheng J C 2013 Sci. Rep. 3 2546Google Scholar
[22] Li Y, Jiang X, Liang B, Cheng J C, Zhang L K 2015 Phys. Rev. Appl. 4 024003Google Scholar
[23] Melde K, Mark A G, Qiu T, Fischer P 2016 Nature 537 518Google Scholar
[24] Xie Y, Shen C, Wang W, Li J, Suo D, Popa B I, Jing Y, Cummer S A 2016 Sci. Rep. 6 35437Google Scholar
[25] Zhu Y, Hu J, Fan X, Yang J, Liang B, Zhu X, Cheng J 2018 Nat. Commun. 9 1632Google Scholar
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[30] Li Y, Assouar B M 2016 Appl. Phys. Lett. 108 063502
[31] Shen C, Cummer S A 2018 Phys. Rev. Appl. 9 054009Google Scholar
[32] Jiménez N, Huang W, Romero-García V, Pagneux V, Groby J P 2016 Appl. Phys. Lett. 109 121902Google Scholar
[33] Chen J, Xiao J, Lisevych D, Shakouri A, Fan Z 2018 Nat. Commun. 9 4920Google Scholar
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[37] Lu M H, Feng L, Chen Y F 2009 Mater. Today 12 34
[38] Ge H, Yang M, Ma C, Lu M H, Chen Y F, Fang N, Sheng P 2018 Natl. Sci. Rev. 5 159Google Scholar
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[41] Ma G C, Yang M, Xiao S W, Yang Z Y, Sheng P 2014 Nat. Mater. 13 873Google Scholar
[42] Jiménez N, Romero-García V, Pagneux V, Groby J P 2017 Phys. Rev. B 95 014205Google Scholar
[43] Jiang X, Liang B, Li R Q, Zou X Y, Yin L L, Cheng J C 2014 Appl. Phys. Lett. 105 243505
[44] Yang M, Chen S Y, Fu C X, Sheng P 2017 Mater. Horiz. 4 673Google Scholar
[45] Ma G C, Sheng P 2016 Sci. Adv. 2 e1501595Google Scholar
[46] Lemoult F, Fink M, Lerosey G 2011 Phys. Rev. Lett. 107 064301Google Scholar
[47] Lemoult F, Kaina N, Fink M, Lerosey G 2013 Nat. Phys. 9 55
[48] Park J J, Park C M, Lee K J B, Lee S H 2015 Appl. Phys. Lett. 106 051901Google Scholar
[49] Ambati M, Fang N, Sun C, Zhang X 2007 Phys. Rev. B 75 195447Google Scholar
[50] Park C M, Park J J, Lee S H, Seo Y M, Kim C K, Lee S H 2011 Phys. Rev. Lett. 107 194301Google Scholar
[51] Zhu J, Christensen J, Jung J, Martin-Moreno L, Yin X, Fok L, Zhang X, Garcia-Vidal F J 2011 Nat. Phys. 7 52
[52] Li J, Fok L, Yin X, Bartal G, Zhang X 2009 Nat. Mater. 8 931Google Scholar
[53] Ma G C, Fan X Y, Ma F Y, de Rosny J, Sheng P, Fink M 2018 Nat. Phys. 14 608Google Scholar
[54] Lanoy M, Pierrat R, Lemoult F, Fink M, Leroy V, Tourin A 2015 Phys. Rev. B 91 224202Google Scholar
[55] Lemoult F, Fink M, Lerosey G 2011 Waves in Random and Complex Media 21 614
[56] Bender C M, Boettcher S 1998 Phys. Rev. Lett. 80 5243Google Scholar
[57] Chong Y D, Ge L, Stone A D 2011 Phys. Rev. Lett. 106 093902Google Scholar
[58] Feng L, Xu Y L, Fegadolli W S, Lu M H, Oliveira J E B, Almeida V R, Chen Y F, Scherer A 2013 Nat. Mater. 12 108
[59] Chang L, Jiang X S, Hua S Y, Yang C, Wen J M, Jiang L, Li G, Wang G Z, Xiao M 2014 Nat. Photon. 8 524Google Scholar
[60] Feng L, Wong Z J, Ma R M, Wang Y, Zhang X 2014 Science 346 972Google Scholar
[61] Zhu X F, Ramezani H, Shi C Z, Zhu J, Zhang X 2014 Phys. Rev. X 4 031042
[62] Shi C Z, Dubois M, Chen Y, Cheng L, Ramezani H, Wang Y, Zhang X 2016 Nat. Commun. 7 11110Google Scholar
[63] Fleury R, Sounas D L, Alù A 2016 IEEE J. Sel. Top. Quant. 22 121Google Scholar
[64] Aurégan Y, Pagneux V 2017 Phys. Rev. Lett. 118 174301Google Scholar
[65] Christensen J, Willatzen M, Velasco V R, Lu M H 2016 Phys. Rev. Lett. 116 207601Google Scholar
[66] Lu M H, Zhang C, Feng L, Zhao J, Chen Y F, Mao Y W, Zi J, Zhu Y Y, Zhu S N, Ming N B 2007 Nat. Mater. 6 744Google Scholar
[67] Lu M H, Liu X K, Feng L, Li J, Huang C P, Chen Y F, Zhu Y Y, Zhu S N, Ming N B 2007 Phys. Rev. Lett. 99 174301Google Scholar
[68] Haldane F D M, Raghu S 2008 Phys. Rev. Lett. 100 013904Google Scholar
[69] Wang Z, Chong Y, Joannopoulos J D, Soljačić M 2009 Nature 461 772Google Scholar
[70] Fleury R, Sounas D L, Sieck C F, Haberman M R, Alù A 2014 Science 343 516Google Scholar
[71] Ni X, He C, Sun X C, Liu X P, Lu M H, Feng L, Chen Y F 2015 New J. Phys. 17 053016Google Scholar
[72] Ding Y J, Peng Y G, Zhu Y F, Fan X D, Yang J, Liang B, Zhu X F, Wan X G, Cheng J C 2019 Phys. Rev. Lett. 122 014302Google Scholar
[73] Kane C L, Mele E J 2005 Phys. Rev. Lett. 95 146802Google Scholar
[74] König M, Wiedmann S, Brüne C, Roth A, Buhmann H, Molenkamp L W, Qi X L, Zhang S C 2007 Science 318 766Google Scholar
[75] He C, Ni X, Ge H, Sun X C, Chen Y B, Lu M H, Liu X P, Chen Y F 2016 Nat. Phys. 12 1124Google Scholar
[76] Yu S Y, He C, Wang Z, Liu F K, Sun X C, Li Z, Lu H Z, Lu M H, Liu X P, Chen Y F 2018 Nat. Commun. 9 3072Google Scholar
[77] Lu J Y, Qiu C Y, Ye L P, Fan X Y, Ke M Z, Zhang F, Liu Z Y 2017 Nat. Phys. 13 369
[78] Wang Z, Yu S Y, Liu F K, Tian Y, Gupta S K, Lu M H, Chen Y F 2018 Appl. Phys. Express 11 107301Google Scholar
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[80] He C, Yu S Y, Ge H, Wang H Q, Tian Y, Zhang H J, Sun X C, Chen Y B, Zhou J, Lu M H, Chen Y F 2018 Nat. Commun. 9 4555Google Scholar
[81] Popa B I, Zigoneanu L, Cummer S A 2011 Phys. Rev. Lett. 106 253901Google Scholar
[82] Zigoneanu L, Popa B I, Cummer S A 2014 Nat. Mater. 13 352Google Scholar
[83] Li X F, Ni X, Feng L, Lu M H, He C, Chen Y F 2011 Phys. Rev. Lett. 106 084301Google Scholar
[84] Valentine J, Zhang S, Zentgraf T, Ulin-Avila E, Genov D A, Bartal G, Zhang X 2008 Nature 455 376Google Scholar
[85] Xiao S, Drachev V P, Kildishev A V, Ni X, Chettiar U K, Yuan H-K, Shalaev V M 2010 Nature 466 735Google Scholar
[86] Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F, Smith D R 2006 Science 314 977Google Scholar
[87] Watts C M, Liu X, Padilla W J 2012 Adv. Mater. 24 OP98
[88] Berger J B, Wadley H N G, McMeeking R M 2017 Nature 543 533Google Scholar
[89] Frenzel T, Kadic M, Wegener M 2017 Science 358 1072Google Scholar
[90] Han T C, Bai X, Liu D, Gao D L, Li B, Thong J T L, Qiu C W 2015 Sci. Rep. 5 10242Google Scholar
[91] Han T C, Bai X, Thong J T L, Li B W, Qiu C W 2014 Adv. Mater. 26 1731Google Scholar
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