Design of an acoustic superlens using single-phase metamaterials with a star-shaped lattice structure | |
Chen M(陈猛); Jiang H(姜恒); Zhang H; Li DS; Wang YR(王育人) | |
刊名 | SCIENTIFIC REPORTS |
2018-01-30 | |
卷号 | 8页码:1861 |
ISSN号 | 2045-2322 |
DOI | 10.1038/s41598-018-19374-2 |
英文摘要 | We propose a single-phase super lens with a low density that can achieve focusing of sound beyond the diffraction limit. The super lens has a star-shaped lattice structure made of steel that offers abundant resonances to produce abnormal dispersive effects as determined by negative parameter indices. Our analysis of the metamaterial band structure suggests that these star-shaped metamaterials have double-negative index properties, that can mediate these effects for sound in water. Simulations verify the effective focusing of sound by a single-phase solid lens with a spatial resolution of approximately 0.39 lambda. This superlens has a simple structure, low density and solid nature, which makes it more practical for application in water-based environments. |
分类号 | 二类/q1 |
URL标识 | 查看原文 |
WOS关键词 | Negative Refraction ; Index ; Waves |
WOS研究方向 | Multidisciplinary Sciences |
语种 | 英语 |
WOS记录号 | WOS:000423508900032 |
资助机构 | National Natural Science Foundation of China [11202211, 11602269] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040301] ; Research Program of Beijing [Z161100002616034, Z171100000817010] |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/77796] |
专题 | 力学研究所_国家微重力实验室 |
通讯作者 | Jiang H(姜恒); Wang YR(王育人) |
作者单位 | 1.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Acoust, State Key Lab Acoust, Beijing 100190, Peoples R China 4.China Ship Sci Res Ctr, Natl Key Lab Ship Vibrat & Noise, Wuxi 214082, Peoples R China |
推荐引用方式 GB/T 7714 | Chen M,Jiang H,Zhang H,et al. Design of an acoustic superlens using single-phase metamaterials with a star-shaped lattice structure[J]. SCIENTIFIC REPORTS,2018,8:1861. |
APA | Chen M,Jiang H,Zhang H,Li DS,&Wang YR.(2018).Design of an acoustic superlens using single-phase metamaterials with a star-shaped lattice structure.SCIENTIFIC REPORTS,8,1861. |
MLA | Chen M,et al."Design of an acoustic superlens using single-phase metamaterials with a star-shaped lattice structure".SCIENTIFIC REPORTS 8(2018):1861. |
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