Virtual acoustics in inhomogeneous media with single-sided access

Abstract A virtual acoustic source inside a medium can be created by emitting a time-reversed point-source response from the enclosing boundary into the medium. However, in many practical situations the medium can be accessed from one side only. In those cases the time-reversal approach is not exact...

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Autores principales:	Kees Wapenaar, Joeri Brackenhoff, Jan Thorbecke, Joost van der Neut, Evert Slob, Eric Verschuur
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/32060714a7ca4b16a90f9ead52c2cc8b
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id	oai:doaj.org-article:32060714a7ca4b16a90f9ead52c2cc8b
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spelling	oai:doaj.org-article:32060714a7ca4b16a90f9ead52c2cc8b2021-12-02T15:09:11ZVirtual acoustics in inhomogeneous media with single-sided access10.1038/s41598-018-20924-x2045-2322https://doaj.org/article/32060714a7ca4b16a90f9ead52c2cc8b2018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20924-xhttps://doaj.org/toc/2045-2322Abstract A virtual acoustic source inside a medium can be created by emitting a time-reversed point-source response from the enclosing boundary into the medium. However, in many practical situations the medium can be accessed from one side only. In those cases the time-reversal approach is not exact. Here, we demonstrate the experimental design and use of complex focusing functions to create virtual acoustic sources and virtual receivers inside an inhomogeneous medium with single-sided access. The retrieved virtual acoustic responses between those sources and receivers mimic the complex propagation and multiple scattering paths of waves that would be ignited by physical sources and recorded by physical receivers inside the medium. The possibility to predict complex virtual acoustic responses between any two points inside an inhomogeneous medium, without needing a detailed model of the medium, has large potential for holographic imaging and monitoring of objects with single-sided access, ranging from photoacoustic medical imaging to the monitoring of induced-earthquake waves all the way from the source to the earth’s surface.Kees WapenaarJoeri BrackenhoffJan ThorbeckeJoost van der NeutEvert SlobEric VerschuurNature 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 Kees Wapenaar Joeri Brackenhoff Jan Thorbecke Joost van der Neut Evert Slob Eric Verschuur Virtual acoustics in inhomogeneous media with single-sided access
description	Abstract A virtual acoustic source inside a medium can be created by emitting a time-reversed point-source response from the enclosing boundary into the medium. However, in many practical situations the medium can be accessed from one side only. In those cases the time-reversal approach is not exact. Here, we demonstrate the experimental design and use of complex focusing functions to create virtual acoustic sources and virtual receivers inside an inhomogeneous medium with single-sided access. The retrieved virtual acoustic responses between those sources and receivers mimic the complex propagation and multiple scattering paths of waves that would be ignited by physical sources and recorded by physical receivers inside the medium. The possibility to predict complex virtual acoustic responses between any two points inside an inhomogeneous medium, without needing a detailed model of the medium, has large potential for holographic imaging and monitoring of objects with single-sided access, ranging from photoacoustic medical imaging to the monitoring of induced-earthquake waves all the way from the source to the earth’s surface.
format	article
author	Kees Wapenaar Joeri Brackenhoff Jan Thorbecke Joost van der Neut Evert Slob Eric Verschuur
author_facet	Kees Wapenaar Joeri Brackenhoff Jan Thorbecke Joost van der Neut Evert Slob Eric Verschuur
author_sort	Kees Wapenaar
title	Virtual acoustics in inhomogeneous media with single-sided access
title_short	Virtual acoustics in inhomogeneous media with single-sided access
title_full	Virtual acoustics in inhomogeneous media with single-sided access
title_fullStr	Virtual acoustics in inhomogeneous media with single-sided access
title_full_unstemmed	Virtual acoustics in inhomogeneous media with single-sided access
title_sort	virtual acoustics in inhomogeneous media with single-sided access
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/32060714a7ca4b16a90f9ead52c2cc8b
work_keys_str_mv	AT keeswapenaar virtualacousticsininhomogeneousmediawithsinglesidedaccess AT joeribrackenhoff virtualacousticsininhomogeneousmediawithsinglesidedaccess AT janthorbecke virtualacousticsininhomogeneousmediawithsinglesidedaccess AT joostvanderneut virtualacousticsininhomogeneousmediawithsinglesidedaccess AT evertslob virtualacousticsininhomogeneousmediawithsinglesidedaccess AT ericverschuur virtualacousticsininhomogeneousmediawithsinglesidedaccess
_version_	1718387865310724096

Virtual acoustics in inhomogeneous media with single-sided access

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