Acoustic wavefront modulation with helical-structured metamaterials

Shanjun Liang; Tuo Liu; Fei Chen; Jie Zhu

Acoustic wavefront modulation with helical-structured metamaterials

Shanjun Liang, Tuo Liu, Fei Chen, Jie Zhu

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

We present a sub-wavelength helical structure array for acoustic wavefront modulation with both transmission and reflection circumstances. By setting up those two kinds of structures, we realized high-efficiency sound focusing and anomalous refraction with a flat lens. The advantages of the structure are batched fabrication, superior tunability, and low loss. We adopted a series of element types with different phase manipulation properties to constitute the array for nearly arbitrary phase gradient. Our results will significantly enhance the application of acoustic metamaterials in practical projects.

Original language	English
Title of host publication	INTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet
Publisher	Institute of Noise Control Engineering
Publication status	Published - 1 Jan 2017
Event	46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 - Hong Kong Convention and Exhibition Centre (HKCEC), Hong Kong, Hong Kong Duration: 27 Aug 2017 → 30 Aug 2017

Conference

Conference	46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017
Country/Territory	Hong Kong
City	Hong Kong
Period	27/08/17 → 30/08/17

Keywords

Acoustic Focusing
Acoustic Metamaterial
Helical Structure
Wavefront Modulation

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

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title = "Acoustic wavefront modulation with helical-structured metamaterials",

abstract = "We present a sub-wavelength helical structure array for acoustic wavefront modulation with both transmission and reflection circumstances. By setting up those two kinds of structures, we realized high-efficiency sound focusing and anomalous refraction with a flat lens. The advantages of the structure are batched fabrication, superior tunability, and low loss. We adopted a series of element types with different phase manipulation properties to constitute the array for nearly arbitrary phase gradient. Our results will significantly enhance the application of acoustic metamaterials in practical projects.",

keywords = "Acoustic Focusing, Acoustic Metamaterial, Helical Structure, Wavefront Modulation",

author = "Shanjun Liang and Tuo Liu and Fei Chen and Jie Zhu",

year = "2017",

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language = "English",

booktitle = "INTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet",

publisher = "Institute of Noise Control Engineering",

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note = "46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 ; Conference date: 27-08-2017 Through 30-08-2017",

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Liang, S, Liu, T, Chen, F & Zhu, J 2017, Acoustic wavefront modulation with helical-structured metamaterials. in INTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet. Institute of Noise Control Engineering, 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017, Hong Kong, Hong Kong, 27/08/17.

Acoustic wavefront modulation with helical-structured metamaterials. / Liang, Shanjun; Liu, Tuo; Chen, Fei et al.
INTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet. Institute of Noise Control Engineering, 2017.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Acoustic wavefront modulation with helical-structured metamaterials

AU - Liang, Shanjun

AU - Liu, Tuo

AU - Chen, Fei

AU - Zhu, Jie

PY - 2017/1/1

Y1 - 2017/1/1

N2 - We present a sub-wavelength helical structure array for acoustic wavefront modulation with both transmission and reflection circumstances. By setting up those two kinds of structures, we realized high-efficiency sound focusing and anomalous refraction with a flat lens. The advantages of the structure are batched fabrication, superior tunability, and low loss. We adopted a series of element types with different phase manipulation properties to constitute the array for nearly arbitrary phase gradient. Our results will significantly enhance the application of acoustic metamaterials in practical projects.

AB - We present a sub-wavelength helical structure array for acoustic wavefront modulation with both transmission and reflection circumstances. By setting up those two kinds of structures, we realized high-efficiency sound focusing and anomalous refraction with a flat lens. The advantages of the structure are batched fabrication, superior tunability, and low loss. We adopted a series of element types with different phase manipulation properties to constitute the array for nearly arbitrary phase gradient. Our results will significantly enhance the application of acoustic metamaterials in practical projects.

KW - Acoustic Focusing

KW - Acoustic Metamaterial

KW - Helical Structure

KW - Wavefront Modulation

UR - http://www.scopus.com/inward/record.url?scp=85042004969&partnerID=8YFLogxK

M3 - Conference article published in proceeding or book

BT - INTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet

PB - Institute of Noise Control Engineering

T2 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017

Y2 - 27 August 2017 through 30 August 2017

ER -

Acoustic wavefront modulation with helical-structured metamaterials

Abstract

Conference

Keywords

ASJC Scopus subject areas

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