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Tunable photo-responsive elastic metamaterials

The metamaterial paradigm has allowed an unprecedented space-time control of various physical fields, including elastic and acoustic waves. Despite the wide variety of metamaterial configurations proposed so far, most of the existing solutions display a frequency response that cannot be tuned, once...

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Autores principales: Gliozzi, Antonio S., Miniaci, Marco, Chiappone, Annalisa, Bergamini, Andrea, Morin, Benjamin, Descrovi, Emiliano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244508/
https://www.ncbi.nlm.nih.gov/pubmed/32444601
http://dx.doi.org/10.1038/s41467-020-16272-y
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author Gliozzi, Antonio S.
Miniaci, Marco
Chiappone, Annalisa
Bergamini, Andrea
Morin, Benjamin
Descrovi, Emiliano
author_facet Gliozzi, Antonio S.
Miniaci, Marco
Chiappone, Annalisa
Bergamini, Andrea
Morin, Benjamin
Descrovi, Emiliano
author_sort Gliozzi, Antonio S.
collection PubMed
description The metamaterial paradigm has allowed an unprecedented space-time control of various physical fields, including elastic and acoustic waves. Despite the wide variety of metamaterial configurations proposed so far, most of the existing solutions display a frequency response that cannot be tuned, once the structures are fabricated. Few exceptions include systems controlled by electric or magnetic fields, temperature, radio waves and mechanical stimuli, which may often be unpractical for real-world implementations. To overcome this limitation, we introduce here a polymeric 3D-printed elastic metamaterial whose transmission spectrum can be deterministically tuned by a light field. We demonstrate the reversible doubling of the width of an existing frequency band gap upon selective laser illumination. This feature is exploited to provide an elastic-switch functionality with a one-minute lag time, over one hundred cycles. In perspective, light-responsive components can bring substantial improvements to active devices for elastic wave control, such as beam-splitters, switches and filters.
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spelling pubmed-72445082020-06-03 Tunable photo-responsive elastic metamaterials Gliozzi, Antonio S. Miniaci, Marco Chiappone, Annalisa Bergamini, Andrea Morin, Benjamin Descrovi, Emiliano Nat Commun Article The metamaterial paradigm has allowed an unprecedented space-time control of various physical fields, including elastic and acoustic waves. Despite the wide variety of metamaterial configurations proposed so far, most of the existing solutions display a frequency response that cannot be tuned, once the structures are fabricated. Few exceptions include systems controlled by electric or magnetic fields, temperature, radio waves and mechanical stimuli, which may often be unpractical for real-world implementations. To overcome this limitation, we introduce here a polymeric 3D-printed elastic metamaterial whose transmission spectrum can be deterministically tuned by a light field. We demonstrate the reversible doubling of the width of an existing frequency band gap upon selective laser illumination. This feature is exploited to provide an elastic-switch functionality with a one-minute lag time, over one hundred cycles. In perspective, light-responsive components can bring substantial improvements to active devices for elastic wave control, such as beam-splitters, switches and filters. Nature Publishing Group UK 2020-05-22 /pmc/articles/PMC7244508/ /pubmed/32444601 http://dx.doi.org/10.1038/s41467-020-16272-y Text en © The Author(s) 2020 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gliozzi, Antonio S.
Miniaci, Marco
Chiappone, Annalisa
Bergamini, Andrea
Morin, Benjamin
Descrovi, Emiliano
Tunable photo-responsive elastic metamaterials
title Tunable photo-responsive elastic metamaterials
title_full Tunable photo-responsive elastic metamaterials
title_fullStr Tunable photo-responsive elastic metamaterials
title_full_unstemmed Tunable photo-responsive elastic metamaterials
title_short Tunable photo-responsive elastic metamaterials
title_sort tunable photo-responsive elastic metamaterials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244508/
https://www.ncbi.nlm.nih.gov/pubmed/32444601
http://dx.doi.org/10.1038/s41467-020-16272-y
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