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Frequency selective wave beaming in nonreciprocal acoustic phased arrays
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 pat...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7721751/ https://www.ncbi.nlm.nih.gov/pubmed/33288777 http://dx.doi.org/10.1038/s41598-020-77489-x |
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author | Adlakha, Revant Moghaddaszadeh, Mohammadreza Attarzadeh, Mohammad A. Aref, Amjad Nouh, Mostafa |
author_facet | Adlakha, Revant Moghaddaszadeh, Mohammadreza Attarzadeh, Mohammad A. Aref, Amjad Nouh, Mostafa |
author_sort | Adlakha, Revant |
collection | PubMed |
description | 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 | Online Article Text |
id | pubmed-7721751 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-77217512020-12-08 Frequency selective wave beaming in nonreciprocal acoustic phased arrays Adlakha, Revant Moghaddaszadeh, Mohammadreza Attarzadeh, Mohammad A. Aref, Amjad Nouh, Mostafa Sci Rep Article 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. Nature Publishing Group UK 2020-12-07 /pmc/articles/PMC7721751/ /pubmed/33288777 http://dx.doi.org/10.1038/s41598-020-77489-x Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Adlakha, Revant Moghaddaszadeh, Mohammadreza Attarzadeh, Mohammad A. Aref, Amjad Nouh, Mostafa Frequency selective wave beaming in nonreciprocal acoustic phased arrays |
title | 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_short | Frequency selective wave beaming in nonreciprocal acoustic phased arrays |
title_sort | frequency selective wave beaming in nonreciprocal acoustic phased arrays |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7721751/ https://www.ncbi.nlm.nih.gov/pubmed/33288777 http://dx.doi.org/10.1038/s41598-020-77489-x |
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