Ultrathin Acoustic Metasurface-Based Schroeder Diffuser

“Schroeder diffuser” is a classical design, proposed over 40 years ago, for artificially creating optimal and predictable sound diffuse reflection. It has been widely adopted in architectural acoustics, and it has also shown substantial potential in noise control, ultrasound imaging, microparticle m...

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Autores principales:	Yifan Zhu, Xudong Fan, Bin Liang, Jianchun Cheng, Yun Jing
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2017
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/aef135d95ddc46458cc889600472be72
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id	oai:doaj.org-article:aef135d95ddc46458cc889600472be72
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spelling	oai:doaj.org-article:aef135d95ddc46458cc889600472be722021-12-02T11:46:09ZUltrathin Acoustic Metasurface-Based Schroeder Diffuser10.1103/PhysRevX.7.0210342160-3308https://doaj.org/article/aef135d95ddc46458cc889600472be722017-06-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.7.021034http://doi.org/10.1103/PhysRevX.7.021034https://doaj.org/toc/2160-3308“Schroeder diffuser” is a classical design, proposed over 40 years ago, for artificially creating optimal and predictable sound diffuse reflection. It has been widely adopted in architectural acoustics, and it has also shown substantial potential in noise control, ultrasound imaging, microparticle manipulation et al. The conventional Schroeder diffuser, however, has a considerable thickness on the order of one wavelength, severely impeding its applications for low-frequency sound. In this paper, a new class of ultrathin and planar Schroeder diffusers are proposed based on the concept of an acoustic metasurface. Both numerical and experimental results demonstrate satisfactory sound diffuse reflection produced from the metasurface-based Schroeder diffuser despite it being approximately 1 order of magnitude thinner than the conventional one. The proposed design not only offers promising building blocks with great potential to profoundly impact architectural acoustics and related fields, but it also constitutes a major step towards real-world applications of acoustic metasurfaces.Yifan ZhuXudong FanBin LiangJianchun ChengYun JingAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 7, Iss 2, p 021034 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Yifan Zhu Xudong Fan Bin Liang Jianchun Cheng Yun Jing Ultrathin Acoustic Metasurface-Based Schroeder Diffuser
description	“Schroeder diffuser” is a classical design, proposed over 40 years ago, for artificially creating optimal and predictable sound diffuse reflection. It has been widely adopted in architectural acoustics, and it has also shown substantial potential in noise control, ultrasound imaging, microparticle manipulation et al. The conventional Schroeder diffuser, however, has a considerable thickness on the order of one wavelength, severely impeding its applications for low-frequency sound. In this paper, a new class of ultrathin and planar Schroeder diffusers are proposed based on the concept of an acoustic metasurface. Both numerical and experimental results demonstrate satisfactory sound diffuse reflection produced from the metasurface-based Schroeder diffuser despite it being approximately 1 order of magnitude thinner than the conventional one. The proposed design not only offers promising building blocks with great potential to profoundly impact architectural acoustics and related fields, but it also constitutes a major step towards real-world applications of acoustic metasurfaces.
format	article
author	Yifan Zhu Xudong Fan Bin Liang Jianchun Cheng Yun Jing
author_facet	Yifan Zhu Xudong Fan Bin Liang Jianchun Cheng Yun Jing
author_sort	Yifan Zhu
title	Ultrathin Acoustic Metasurface-Based Schroeder Diffuser
title_short	Ultrathin Acoustic Metasurface-Based Schroeder Diffuser
title_full	Ultrathin Acoustic Metasurface-Based Schroeder Diffuser
title_fullStr	Ultrathin Acoustic Metasurface-Based Schroeder Diffuser
title_full_unstemmed	Ultrathin Acoustic Metasurface-Based Schroeder Diffuser
title_sort	ultrathin acoustic metasurface-based schroeder diffuser
publisher	American Physical Society
publishDate	2017
url	https://doaj.org/article/aef135d95ddc46458cc889600472be72
work_keys_str_mv	AT yifanzhu ultrathinacousticmetasurfacebasedschroederdiffuser AT xudongfan ultrathinacousticmetasurfacebasedschroederdiffuser AT binliang ultrathinacousticmetasurfacebasedschroederdiffuser AT jianchuncheng ultrathinacousticmetasurfacebasedschroederdiffuser AT yunjing ultrathinacousticmetasurfacebasedschroederdiffuser
_version_	1718395246810759168

Ultrathin Acoustic Metasurface-Based Schroeder Diffuser

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