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Article: Surface resonant states and superlensing in acoustic metamaterials

TitleSurface resonant states and superlensing in acoustic metamaterials
Authors
Issue Date2007
PublisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/
Citation
Physical Review B (Condensed Matter and Materials Physics), 2007, v. 75 n. 19, article no. 195447 How to Cite?
AbstractWe report that the negative material responses of acoustic metamaterials can lead to a plethora of surface resonant states. We determine that negative effective-mass density is the necessary condition for the existence of surface states on acoustic metamaterials. We offer the microscopic picture of these unique surface states; in addition, we find that these surface excitations enhance the transmission of evanescent pressure fields across the metamaterial. The evanescent pressure fields scattered from an object can be resonantly coupled and enhanced at the surface of the acoustic metamaterial, resulting in an image with resolution below the diffraction limit. This concept of acoustic superlens opens exciting opportunities to design acoustic metamaterials for ultrasonic imaging. © 2007 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/256945
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAmbati, Muralidhar-
dc.contributor.authorFang, Nicholas-
dc.contributor.authorSun, Cheng-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:58:24Z-
dc.date.available2018-07-24T08:58:24Z-
dc.date.issued2007-
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2007, v. 75 n. 19, article no. 195447-
dc.identifier.issn1098-0121-
dc.identifier.urihttp://hdl.handle.net/10722/256945-
dc.description.abstractWe report that the negative material responses of acoustic metamaterials can lead to a plethora of surface resonant states. We determine that negative effective-mass density is the necessary condition for the existence of surface states on acoustic metamaterials. We offer the microscopic picture of these unique surface states; in addition, we find that these surface excitations enhance the transmission of evanescent pressure fields across the metamaterial. The evanescent pressure fields scattered from an object can be resonantly coupled and enhanced at the surface of the acoustic metamaterial, resulting in an image with resolution below the diffraction limit. This concept of acoustic superlens opens exciting opportunities to design acoustic metamaterials for ultrasonic imaging. © 2007 The American Physical Society.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/-
dc.relation.ispartofPhysical Review B (Condensed Matter and Materials Physics)-
dc.titleSurface resonant states and superlensing in acoustic metamaterials-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevB.75.195447-
dc.identifier.scopuseid_2-s2.0-34347335747-
dc.identifier.volume75-
dc.identifier.issue19-
dc.identifier.spagearticle no. 195447-
dc.identifier.epagearticle no. 195447-
dc.identifier.eissn1550-235X-
dc.identifier.isiWOS:000246890800172-

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