Broadband Acoustic Hyperbolic Metamaterial.

Published

Journal Article

In this Letter, we report on the design and experimental characterization of a broadband acoustic hyperbolic metamaterial. The proposed metamaterial consists of multiple arrays of clamped thin plates facing the y direction and is shown to yield opposite signs of effective density in the x and y directions below a certain cutoff frequency, therefore, yielding a hyperbolic dispersion. Partial focusing and subwavelength imaging are experimentally demonstrated at frequencies between 1.0 and 2.5 kHz. The proposed metamaterial could open up new possibilities for acoustic wave manipulation and may find usage in medical imaging and nondestructive testing.

Full Text

Duke Authors

Cited Authors

  • Shen, C; Xie, Y; Sui, N; Wang, W; Cummer, SA; Jing, Y

Published Date

  • December 16, 2015

Published In

Volume / Issue

  • 115 / 25

Start / End Page

  • 254301 -

PubMed ID

  • 26722924

Pubmed Central ID

  • 26722924

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.115.254301

Language

  • eng