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Three-dimensional fractal structure with double negative and density-near-zero properties on a subwavelength scale

文献类型：期刊论文

作者Liu Y(刘宇)3,4; Xu WS(徐文帅)3,4; Chen M(陈猛)3,4; Yang T(杨洮)3,4; Wang KJ2; Huang X1; Jiang H(姜恒)3,4; Wang YR(王育人)3,4
刊名MATERIALS & DESIGN
出版日期2020-03-01
卷号188页码:6
关键词3D fractal structure Negative refraction Density-near-zero property Subwavelength scale
ISSN号0264-1275
DOI10.1016/j.matdes.2020.108470
通讯作者Chen, Meng(chenmeng@imech.ac.cn) ; Jiang, Heng(hengjiang@imech.ac.cn)
英文摘要We constructed a three-dimensional fractal acoustic metamaterial using the combination of zigzag channels and Menger fractal structures that had high structural symmetry and could extend into 3D space easily. Reflection and transmission coefficients were numerically calculated and experimentally measured, and the results matched well with each other. Using the finite element method and the S-parameter retrieval method, the band structures, the equivalent frequency surface and the effective parameters of the acoustic metamaterial were calculated. The results showed that the 3D acoustic metamaterial had double negative property in the normalized frequency range of 0.205-0.269 and density-near-zero property in the normalized frequency vicinity of 0.356. A plate lens model and a quarter-bending model were constructed to demonstrate the double negative property and the density-near-zero property of the acoustic metamaterial, respectively. These results showed that the 3D acoustic metamaterial could achieve excellent acoustic properties and would be promising to construct the 3D double negative structure and control acoustic waves on a subwavelength scale within a single unit. (C) 2020 The Authors. Published by Elsevier Ltd.
分类号二类/Q1
WOS关键词ACOUSTIC-WAVES ; METAMATERIAL
资助项目National Natural Science Foundation of China[11602269] ; National Natural Science Foundation of China[11602027] ; National Natural Science Foundation of China[11802213] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040301] ; Research Program of Beijing[Z161100002616034] ; Research Program of Beijing[Z171100000817010] ; Research Program of Beijing[Z191100002019013] ; Beijing Natural Sci-ence Foundation[7172056]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000514567900067
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Research Program of Beijing ; Beijing Natural Sci-ence Foundation
其他责任者Chen, Meng ; Jiang, Heng
源URL[http://dspace.imech.ac.cn/handle/311007/81843]  
专题力学研究所_国家微重力实验室
作者单位1.Inst Appl Phys & Computat Math, Beijing 10094, Peoples R China
2.Capital Med Univ, Beijing Tongren Hosp, Beijing Tongren Eye Ctr, Beijing Ophthalmol & Visual Sci Key Lab, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Liu Y,Xu WS,Chen M,et al. Three-dimensional fractal structure with double negative and density-near-zero properties on a subwavelength scale[J]. MATERIALS & DESIGN,2020,188:6.
APA 刘宇.,徐文帅.,陈猛.,杨洮.,Wang KJ.,...&王育人.(2020).Three-dimensional fractal structure with double negative and density-near-zero properties on a subwavelength scale.MATERIALS & DESIGN,188,6.
MLA 刘宇,et al."Three-dimensional fractal structure with double negative and density-near-zero properties on a subwavelength scale".MATERIALS & DESIGN 188(2020):6.

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来源：力学研究所

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