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Article: Focusing ultrasound with an acoustic metamaterial network

TitleFocusing ultrasound with an acoustic metamaterial network
Authors
Issue Date2009
Citation
Physical Review Letters, 2009, v. 102, n. 19, article no. 194301 How to Cite?
AbstractWe present the first experimental demonstration of focusing ultrasound waves through a flat acoustic metamaterial lens composed of a planar network of subwavelength Helmholtz resonators. We observed a tight focus of half-wavelength in width at 60.5 kHz by imaging a point source. This result is in excellent agreement with the numerical simulation by transmission line model in which we derived the effective mass density and compressibility. This metamaterial lens also displays variable focal length at different frequencies. Our experiment shows the promise of designing compact and lightweight ultrasound imaging elements. © 2009 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/318457
ISSN
2023 Impact Factor: 8.1
2023 SCImago Journal Rankings: 3.040
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Shu-
dc.contributor.authorYin, Leilei-
dc.contributor.authorFang, Nicholas-
dc.date.accessioned2022-10-11T12:23:48Z-
dc.date.available2022-10-11T12:23:48Z-
dc.date.issued2009-
dc.identifier.citationPhysical Review Letters, 2009, v. 102, n. 19, article no. 194301-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/318457-
dc.description.abstractWe present the first experimental demonstration of focusing ultrasound waves through a flat acoustic metamaterial lens composed of a planar network of subwavelength Helmholtz resonators. We observed a tight focus of half-wavelength in width at 60.5 kHz by imaging a point source. This result is in excellent agreement with the numerical simulation by transmission line model in which we derived the effective mass density and compressibility. This metamaterial lens also displays variable focal length at different frequencies. Our experiment shows the promise of designing compact and lightweight ultrasound imaging elements. © 2009 The American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review Letters-
dc.titleFocusing ultrasound with an acoustic metamaterial network-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.102.194301-
dc.identifier.scopuseid_2-s2.0-65649131982-
dc.identifier.volume102-
dc.identifier.issue19-
dc.identifier.spagearticle no. 194301-
dc.identifier.epagearticle no. 194301-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000266207700031-

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