IMECH-IR  > 国家微重力实验室
Menger fractal structure with negative refraction and sound tunnelling properties
Liu Y(刘宇)1,2; Xu WS(徐文帅)1,2; Chen M(陈猛)1,2; Pei DL(裴东亮)1,2; Yang T(杨涛)1,2; Jiang H(姜恒)1,2; Wang YR(王育人)1,2
Source PublicationMaterials Research Express
2019-10-18
Volume6Issue:11Pages:116211
ISSN2053-1591
Abstract

We construct new quasi-three-dimensional fractal acoustic metamaterials based on adoption of the Menger structure, which offers extraordinary parameters such as double-negative properties and a near-zero density. The resulting metamaterials can thus achieve negative refraction, acoustic focusing and sound tunneling. Using the finite element method and the S-parameter retrieval method, the band structures and the effective parameters of these acoustic metamaterials are researched, respectively. The negative refraction property is numerically simulated using a Gaussian beam passing through a double negative prism. A plate lens with a refractive index of n?=??1 is constructed to achieve acoustic focusing and the sound tunnelling ability is verified using the near-zero-density metamaterial. The results show that the Menger fractal structures have excellent acoustic properties and are promising for acoustic applications.

KeywordMenger fractal structure negative refraction acoustic focusing sound tunnelling
DOI10.1088/2053-1591/ab4c57
Indexed BySCI ; EI
Language英语
WOS IDWOS:000504250800008
ClassificationQ3
Ranking1
Contributor陈猛,姜恒
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80652
Collection国家微重力实验室
Affiliation1.Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China;
2.University of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
Recommended Citation
GB/T 7714
Liu Y,Xu WS,Chen M,et al. Menger fractal structure with negative refraction and sound tunnelling properties[J]. Materials Research Express,2019,6(11):116211.
APA Liu Y.,Xu WS.,Chen M.,Pei DL.,Yang T.,...&Wang YR.(2019).Menger fractal structure with negative refraction and sound tunnelling properties.Materials Research Express,6(11),116211.
MLA Liu Y,et al."Menger fractal structure with negative refraction and sound tunnelling properties".Materials Research Express 6.11(2019):116211.
Files in This Item: Download All
File Name/Size DocType Version Access License
Jp2019403.pdf(1003KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu Y(刘宇)]'s Articles
[Xu WS(徐文帅)]'s Articles
[Chen M(陈猛)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu Y(刘宇)]'s Articles
[Xu WS(徐文帅)]'s Articles
[Chen M(陈猛)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu Y(刘宇)]'s Articles
[Xu WS(徐文帅)]'s Articles
[Chen M(陈猛)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Jp2019403.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.