Frequency selective wave beaming in nonreciprocal acoustic phased arrays

Abstract Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters. Constrained by the principle of reciprocity, conventional phased arrays exhibit identical transmission and rece...

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Autores principales:	Revant Adlakha, Mohammadreza Moghaddaszadeh, Mohammad A. Attarzadeh, Amjad Aref, Mostafa Nouh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d11490d847e7460297c9deb45070307c
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spelling	oai:doaj.org-article:d11490d847e7460297c9deb45070307c2021-12-02T16:08:37ZFrequency selective wave beaming in nonreciprocal acoustic phased arrays10.1038/s41598-020-77489-x2045-2322https://doaj.org/article/d11490d847e7460297c9deb45070307c2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-77489-xhttps://doaj.org/toc/2045-2322Abstract Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters. Constrained by the principle of reciprocity, conventional phased arrays exhibit identical transmission and reception patterns which limit the scope of their operation. This work presents a controllable space–time acoustic phased array which breaks time-reversal symmetry, and enables phononic transition in both momentum and energy spaces. By leveraging a dynamic phase modulation, the proposed linear phased array is no longer bound by the acoustic reciprocity, and supports asymmetric transmission and reception patterns that can be tuned independently at multiple channels. A foundational framework is developed to characterize and interpret the emergent nonreciprocal phenomena and is later validated against benchmark numerical experiments. The new phased array selectively alters the directional and frequency content of the incident signal and imparts a frequency conversion between different wave fields, which is further analyzed as a function of the imposed modulation. The space–time acoustic phased array enables unprecedented control over sound waves in a variety of applications ranging from ultrasonic imaging to non-destructive testing and underwater SONAR telecommunication.Revant AdlakhaMohammadreza MoghaddaszadehMohammad A. AttarzadehAmjad ArefMostafa NouhNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Revant Adlakha Mohammadreza Moghaddaszadeh Mohammad A. Attarzadeh Amjad Aref Mostafa Nouh Frequency selective wave beaming in nonreciprocal acoustic phased arrays
description	Abstract Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters. Constrained by the principle of reciprocity, conventional phased arrays exhibit identical transmission and reception patterns which limit the scope of their operation. This work presents a controllable space–time acoustic phased array which breaks time-reversal symmetry, and enables phononic transition in both momentum and energy spaces. By leveraging a dynamic phase modulation, the proposed linear phased array is no longer bound by the acoustic reciprocity, and supports asymmetric transmission and reception patterns that can be tuned independently at multiple channels. A foundational framework is developed to characterize and interpret the emergent nonreciprocal phenomena and is later validated against benchmark numerical experiments. The new phased array selectively alters the directional and frequency content of the incident signal and imparts a frequency conversion between different wave fields, which is further analyzed as a function of the imposed modulation. The space–time acoustic phased array enables unprecedented control over sound waves in a variety of applications ranging from ultrasonic imaging to non-destructive testing and underwater SONAR telecommunication.
format	article
author	Revant Adlakha Mohammadreza Moghaddaszadeh Mohammad A. Attarzadeh Amjad Aref Mostafa Nouh
author_facet	Revant Adlakha Mohammadreza Moghaddaszadeh Mohammad A. Attarzadeh Amjad Aref Mostafa Nouh
author_sort	Revant Adlakha
title	Frequency selective wave beaming in nonreciprocal acoustic phased arrays
title_short	Frequency selective wave beaming in nonreciprocal acoustic phased arrays
title_full	Frequency selective wave beaming in nonreciprocal acoustic phased arrays
title_fullStr	Frequency selective wave beaming in nonreciprocal acoustic phased arrays
title_full_unstemmed	Frequency selective wave beaming in nonreciprocal acoustic phased arrays
title_sort	frequency selective wave beaming in nonreciprocal acoustic phased arrays
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/d11490d847e7460297c9deb45070307c
work_keys_str_mv	AT revantadlakha frequencyselectivewavebeaminginnonreciprocalacousticphasedarrays AT mohammadrezamoghaddaszadeh frequencyselectivewavebeaminginnonreciprocalacousticphasedarrays AT mohammadaattarzadeh frequencyselectivewavebeaminginnonreciprocalacousticphasedarrays AT amjadaref frequencyselectivewavebeaminginnonreciprocalacousticphasedarrays AT mostafanouh frequencyselectivewavebeaminginnonreciprocalacousticphasedarrays
_version_	1718384497931583488

Frequency selective wave beaming in nonreciprocal acoustic phased arrays

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