$Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve$
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Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve

Abstract An acoustic metamaterial based on a fractal structure, the Koch curve, is designed to simultaneously realize slow and fast acoustic waves. Owing to the multiple transmitting paths in the structure resembling the Koch curve, the acoustic waves travelling along different paths interfere with...

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Autores principales:	Jin Ding, Li Fan, Shu-yi Zhang, Hui Zhang, Wei-wei Yu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e1e9944c010443eeb8d9f255e5839703
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id	oai:doaj.org-article:e1e9944c010443eeb8d9f255e5839703
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spelling	oai:doaj.org-article:e1e9944c010443eeb8d9f255e58397032021-12-02T15:09:01ZSimultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve10.1038/s41598-018-19797-x2045-2322https://doaj.org/article/e1e9944c010443eeb8d9f255e58397032018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-19797-xhttps://doaj.org/toc/2045-2322Abstract An acoustic metamaterial based on a fractal structure, the Koch curve, is designed to simultaneously realize slow and fast acoustic waves. Owing to the multiple transmitting paths in the structure resembling the Koch curve, the acoustic waves travelling along different paths interfere with each other. Therefore, slow waves are created on the basis of the resonance of a Koch-curve-shaped loop, and meanwhile, fast waves even with negative group velocities are obtained due to the destructive interference of two acoustic waves with opposite phases. Thus, the transmission of acoustic wave can be freely manipulated with the Koch-curve shaped structure.Jin DingLi FanShu-yi ZhangHui ZhangWei-wei YuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jin Ding Li Fan Shu-yi Zhang Hui Zhang Wei-wei Yu Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve
description	Abstract An acoustic metamaterial based on a fractal structure, the Koch curve, is designed to simultaneously realize slow and fast acoustic waves. Owing to the multiple transmitting paths in the structure resembling the Koch curve, the acoustic waves travelling along different paths interfere with each other. Therefore, slow waves are created on the basis of the resonance of a Koch-curve-shaped loop, and meanwhile, fast waves even with negative group velocities are obtained due to the destructive interference of two acoustic waves with opposite phases. Thus, the transmission of acoustic wave can be freely manipulated with the Koch-curve shaped structure.
format	article
author	Jin Ding Li Fan Shu-yi Zhang Hui Zhang Wei-wei Yu
author_facet	Jin Ding Li Fan Shu-yi Zhang Hui Zhang Wei-wei Yu
author_sort	Jin Ding
title	Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve
title_short	Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve
title_full	Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve
title_fullStr	Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve
title_full_unstemmed	Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve
title_sort	simultaneous realization of slow and fast acoustic waves using a fractal structure of koch curve
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/e1e9944c010443eeb8d9f255e5839703
work_keys_str_mv	AT jinding simultaneousrealizationofslowandfastacousticwavesusingafractalstructureofkochcurve AT lifan simultaneousrealizationofslowandfastacousticwavesusingafractalstructureofkochcurve AT shuyizhang simultaneousrealizationofslowandfastacousticwavesusingafractalstructureofkochcurve AT huizhang simultaneousrealizationofslowandfastacousticwavesusingafractalstructureofkochcurve AT weiweiyu simultaneousrealizationofslowandfastacousticwavesusingafractalstructureofkochcurve
_version_	1718387971588096000

Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve

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