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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)
Source PublicationSCIENTIFIC REPORTS
2018-01-30
Volume8Pages:1861
ISSN2045-2322
Abstract

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.

DOI10.1038/s41598-018-19374-2
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Indexed BySCI
Language英语
WOS IDWOS:000423508900032
WOS KeywordNegative Refraction ; Index ; Waves
WOS Research AreaMultidisciplinary Sciences
WOS SubjectScience & Technology - Other Topics
Funding OrganizationNational Natural Science Foundation of China [11202211, 11602269] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040301] ; Research Program of Beijing [Z161100002616034, Z171100000817010]
Classification二类/q1
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77796
Collection国家微重力实验室
Corresponding AuthorJiang H(姜恒); Wang YR(王育人)
Affiliation1.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
Recommended Citation
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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