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

Yangbo Xie, Chen Shen, Wenqi Wang, Junfei Li, Dingjie Suo, Bogdan Ioan Popa, Yun Jing, Steven A. Cummer

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number35437
JournalScientific reports
Volume6
DOIs
StatePublished - Oct 14 2016

All Science Journal Classification (ASJC) codes

  • General

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