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Experimental demonstration of negative refraction with 3D locally resonant acoustic metafluids

dc.relation.isnodoublea88cb4b4-a13d-4254-9ebb-c76c8bd6f206*
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorTALLON, Benoit
hal.structure.identifierSciences et Ingénierie de la Matière Molle (UMR 7615) [SIMM]
dc.contributor.authorKOVALENKO, Artem
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorPONCELET, Olivier
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorARISTÉGUI, Christophe
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorMONDAIN-MONVAL, Olivier
IDREF: 084112654
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorBRUNET, Thomas
dc.date.accessioned2021-05-14T09:29:49Z
dc.date.available2021-05-14T09:29:49Z
dc.date.issued2021
dc.identifier.issn2045-2322
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75757
dc.description.abstractEnNegative refraction of acoustic waves is demonstrated through underwater experiments conducted at ultrasonic frequencies on a 3D locally resonant acoustic metafluid made of soft porous silicone-rubber micro-beads suspended in a yield-stress fluid. By measuring the refracted angle of the acoustic beam transmitted through this metafluid shaped as a prism, we determine the acoustic index to water according to Snell’s law. These experimental data are then compared with an excellent agreement to calculations performed in the framework of Multiple Scattering Theory showing that the emergence of negative refraction depends on the volume fraction Φ of the resonant micro-beads. For diluted metafluid (Φ=3%), only positive refraction occurs whereas negative refraction is demonstrated over a broad frequency band with concentrated metafluid (Φ=17%).
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enExperimental demonstration of negative refraction with 3D locally resonant acoustic metafluids
dc.typeArticle de revue
dc.identifier.doi10.1038/s41598-021-84018-x
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
bordeaux.journalScientific Reports
bordeaux.page4627
bordeaux.volume11
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-03220087
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03220087v1
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