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dc.contributor.authorRAETZ, Samuel
dc.contributor.authorDEHOUX, Thomas
dc.contributor.authorPERTON, Mathieu
dc.contributor.authorAUDOIN, Bertrand
dc.date.accessioned2021-05-14T09:46:15Z
dc.date.available2021-05-14T09:46:15Z
dc.date.issued2013-12
dc.identifier.issn0001-4966
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76988
dc.description.abstractEnThe symmetry of a thermoelastic source resulting from laser absorption can be broken when the direction of light propagation in an elastic half-space is inclined relatively to the surface. This leads to an asymmetry of the directivity patterns of both compressional and shear acoustic waves. In contrast to classical surface acoustic sources, the tunable volume source allows one to take advantage of the mode conversion at the surface to control the directivity of specific modes. Physical interpretations of the evolution of the directivity patterns with the increasing light angle of incidence and of the relations between the preferential directions of compres-sional-and shear-wave emission are proposed. In order to compare calculated directivity patterns with measurements of normal displacement amplitudes performed on plates, a procedure is proposed to transform the directivity patterns into pseudo-directivity patterns representative of the experimental conditions. The comparison of the theoretical with measured pseudo-directivity patterns demonstrates the ability to enhance bulk-wave amplitudes and to steer specific bulk acoustic modes by adequately tuning light refraction.
dc.language.isoen
dc.publisherAcoustical Society of America
dc.subject.en4320Rz
dc.subject.ennumber(s): 4338Zp
dc.subject.en4335Cg
dc.subject.en4335Ud [ANN] Pages: 4381-4392
dc.title.enAcoustic beam steering by light refraction: Illustration with directivity patterns of a tilted volume photoacoustic source
dc.typeArticle de revue
dc.identifier.doi10.1121/1.4828825
dc.subject.halPhysique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
bordeaux.journalJournal of the Acoustical Society of America
bordeaux.page4381 - 4392
bordeaux.volume134
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue6
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01889418
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01889418v1
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