Acoustic Holographic Rendering with Two-dimensional Metamaterial-based Passive Phased Array.

Journal Article (Journal Article)

Acoustic holographic rendering in complete analogy with optical holography are useful for various applications, ranging from multi-focal lensing, multiplexed sensing and synthesizing three-dimensional complex sound fields. Conventional approaches rely on a large number of active transducers and phase shifting circuits. In this paper we show that by using passive metamaterials as subwavelength pixels, holographic rendering can be achieved without cumbersome circuitry and with only a single transducer, thus significantly reducing system complexity. Such metamaterial-based holograms can serve as versatile platforms for various advanced acoustic wave manipulation and signal modulation, leading to new possibilities in acoustic sensing, energy deposition and medical diagnostic imaging.

Full Text

Duke Authors

Cited Authors

  • Xie, Y; Shen, C; Wang, W; Li, J; Suo, D; Popa, B-I; Jing, Y; Cummer, SA

Published Date

  • October 14, 2016

Published In

Volume / Issue

  • 6 /

Start / End Page

  • 35437 -

PubMed ID

  • 27739472

Pubmed Central ID

  • PMC5064310

Electronic International Standard Serial Number (EISSN)

  • 2045-2322

International Standard Serial Number (ISSN)

  • 2045-2322

Digital Object Identifier (DOI)

  • 10.1038/srep35437

Language

  • eng