$Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens$
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Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens

Abstract Based on the transformation acoustics methodology, the design principle for achieving an arbitrary shape magnifying lens (ASML) is proposed. Contrary to the previous works, the presented ASML is competent of realizing far-field high resolution images and breaking the diffraction limit, rega...

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Autores principales:	Ali Abdolali, Hooman Barati Sedeh, Mohammad Hosein Fakheri, Chen Shen, Fei Sun
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0ce9533dd7b54e02a12e2884ea423ef1
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id	oai:doaj.org-article:0ce9533dd7b54e02a12e2884ea423ef1
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spelling	oai:doaj.org-article:0ce9533dd7b54e02a12e2884ea423ef12021-12-02T17:44:54ZBreaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens10.1038/s41598-021-92297-72045-2322https://doaj.org/article/0ce9533dd7b54e02a12e2884ea423ef12021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92297-7https://doaj.org/toc/2045-2322Abstract Based on the transformation acoustics methodology, the design principle for achieving an arbitrary shape magnifying lens (ASML) is proposed. Contrary to the previous works, the presented ASML is competent of realizing far-field high resolution images and breaking the diffraction limit, regardless of the position of the utilized sources. Therefore, objects locating within the designed ASML can be properly resolved in the far-field region. It is shown that the obtained material through the theoretical investigations becomes an acoustic null medium (ANM), which has recently gained a significant attention. Besides the homogeneity of ANM, which makes it an implementable material, it is also independent of the perturbation in the geometry of the lens, in such a way that the same ANM can be used for different structural topologies. The obtained ANM has been implemented via acoustics unit cells formed by membranes and side branches with open ends and then was utilized to realize an ASML with the aid of effective medium theory. It is shown that the far-field results of an ideal ASML abide well with the results of the implemented sample, validating the proposed design principle. The presented acoustic magnifying lens has a wide spectrum of possible applications ranging from medical imaging, and biomedical sensors to focused ultrasound surgery.Ali AbdolaliHooman Barati SedehMohammad Hosein FakheriChen ShenFei SunNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ali Abdolali Hooman Barati Sedeh Mohammad Hosein Fakheri Chen Shen Fei Sun Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
description	Abstract Based on the transformation acoustics methodology, the design principle for achieving an arbitrary shape magnifying lens (ASML) is proposed. Contrary to the previous works, the presented ASML is competent of realizing far-field high resolution images and breaking the diffraction limit, regardless of the position of the utilized sources. Therefore, objects locating within the designed ASML can be properly resolved in the far-field region. It is shown that the obtained material through the theoretical investigations becomes an acoustic null medium (ANM), which has recently gained a significant attention. Besides the homogeneity of ANM, which makes it an implementable material, it is also independent of the perturbation in the geometry of the lens, in such a way that the same ANM can be used for different structural topologies. The obtained ANM has been implemented via acoustics unit cells formed by membranes and side branches with open ends and then was utilized to realize an ASML with the aid of effective medium theory. It is shown that the far-field results of an ideal ASML abide well with the results of the implemented sample, validating the proposed design principle. The presented acoustic magnifying lens has a wide spectrum of possible applications ranging from medical imaging, and biomedical sensors to focused ultrasound surgery.
format	article
author	Ali Abdolali Hooman Barati Sedeh Mohammad Hosein Fakheri Chen Shen Fei Sun
author_facet	Ali Abdolali Hooman Barati Sedeh Mohammad Hosein Fakheri Chen Shen Fei Sun
author_sort	Ali Abdolali
title	Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
title_short	Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
title_full	Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
title_fullStr	Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
title_full_unstemmed	Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
title_sort	breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0ce9533dd7b54e02a12e2884ea423ef1
work_keys_str_mv	AT aliabdolali breakingtheacousticdiffractionlimitwithanarbitraryshapeacousticmagnifyinglens AT hoomanbaratisedeh breakingtheacousticdiffractionlimitwithanarbitraryshapeacousticmagnifyinglens AT mohammadhoseinfakheri breakingtheacousticdiffractionlimitwithanarbitraryshapeacousticmagnifyinglens AT chenshen breakingtheacousticdiffractionlimitwithanarbitraryshapeacousticmagnifyinglens AT feisun breakingtheacousticdiffractionlimitwithanarbitraryshapeacousticmagnifyinglens
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Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens

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