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- Publisher Website: 10.1103/PhysRevB.75.195447
- Scopus: eid_2-s2.0-34347335747
- WOS: WOS:000246890800172
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Article: Surface resonant states and superlensing in acoustic metamaterials
Title | Surface resonant states and superlensing in acoustic metamaterials |
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Authors | |
Issue Date | 2007 |
Publisher | American 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? |
Abstract | We 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 Identifier | http://hdl.handle.net/10722/256945 |
ISSN | 2014 Impact Factor: 3.736 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ambati, Muralidhar | - |
dc.contributor.author | Fang, Nicholas | - |
dc.contributor.author | Sun, Cheng | - |
dc.contributor.author | Zhang, Xiang | - |
dc.date.accessioned | 2018-07-24T08:58:24Z | - |
dc.date.available | 2018-07-24T08:58:24Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Physical Review B (Condensed Matter and Materials Physics), 2007, v. 75 n. 19, article no. 195447 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | http://hdl.handle.net/10722/256945 | - |
dc.description.abstract | We 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.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ | - |
dc.relation.ispartof | Physical Review B (Condensed Matter and Materials Physics) | - |
dc.title | Surface resonant states and superlensing in acoustic metamaterials | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevB.75.195447 | - |
dc.identifier.scopus | eid_2-s2.0-34347335747 | - |
dc.identifier.volume | 75 | - |
dc.identifier.issue | 19 | - |
dc.identifier.spage | article no. 195447 | - |
dc.identifier.epage | article no. 195447 | - |
dc.identifier.eissn | 1550-235X | - |
dc.identifier.isi | WOS:000246890800172 | - |
dc.identifier.issnl | 1098-0121 | - |