Creation of acoustic vortex knots.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
07 08 2020
07 08 2020
Historique:
received:
19
12
2019
accepted:
08
07
2020
entrez:
10
8
2020
pubmed:
10
8
2020
medline:
10
8
2020
Statut:
epublish
Résumé
Knots and links have been conjectured to play a fundamental role in a wide range of scientific fields. Recently, tying isolated vortex knots in the complex optical field has been realized. However, how to construct the acoustic vortex knot is still an unknown problem. Here we propose theoretically and demonstrate experimentally the creation of acoustic vortex knots using metamaterials, with decoupled modulation of transmitted phase and amplitude. Based on the numerical simulation, we find that the knot function can be embedded into the acoustic field by designed metamaterials with only 24 × 24 pixels. Furthermore, using the optimized metamaterials, the acoustic fields with Hopf link and trefoil knot vortex lines have been observed experimentally.
Identifiants
pubmed: 32770024
doi: 10.1038/s41467-020-17744-x
pii: 10.1038/s41467-020-17744-x
pmc: PMC7414909
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3956Références
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