Acoustic superlens using membrane-based metamaterials

Jong Jin Park, Choon Mahn Park, K. J.B. Lee, Sam H. Lee

Research output: Contribution to journalArticlepeer-review

116 Scopus citations


We report construction of an acoustic superlensing using two dimensional membrane-based negative-density metamaterials. When two point sources separated by a distance of 1/17 of the wavelength are placed near to a surface of the metamaterial slab, well-resolved images are formed on the opposite surface across the slab. The mechanism for the subwavelength resolution is the surface wave stemming from negative density. Potential applications include acoustic imaging and sensing.

Original languageEnglish
Article number051901
JournalApplied Physics Letters
Issue number5
StatePublished - 2 Feb 2015

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