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Motion of Optically Heated Spheres at the Water–Air Interface

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorGIROT, A.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorDANNÉ, N.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorWÜRGER, Alois
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBICKEL, Thomas
hal.structure.identifierComplexe de recherche interprofessionnel en aérothermochimie [CORIA]
dc.contributor.authorREN, Kuan Fang
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorLOUDET, J. C.
hal.structure.identifierCentre de Recherche Paul Pascal [CRPP]
dc.contributor.authorPOULIGNY, B.
dc.date.created2016-01-20
dc.date.issued2016-03-22
dc.identifier.issn0743-7463
dc.description.abstractEnA micrometer-sized spherical particle classically equilibrates at the water?air interface in partial wetting configuration, causing about no deformation to the interface. In condition of thermal equilibrium, the particle just undergoes faint Brownian motion, well visible under a microscope. We report experimental observations when the particle is made of a light-absorbing material and is heated up by a vertical laser beam. We show that, at small laser power, the particle is trapped in on-axis configuration, similarly to 2-dimensional trapping of a transparent sphere by optical forces. Conversely, on-axis trapping becomes unstable at higher power. The particle escapes off the laser axis and starts orbiting around the axis. We show that the laser-heated particle behaves as a microswimmer with velocities on the order of several 100 ?m/s with just a few milliwatts of laser power.
dc.description.sponsorshipMéthodes avancées pour la caractérisation optique de systèmes particulaires complexes - ANR-13-BS09-0008
dc.description.sponsorshipEffets thermoélectriques à l'échelle nano - ANR-13-IS04-0003
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.title.enMotion of Optically Heated Spheres at the Water–Air Interface
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.langmuir.6b00181
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
bordeaux.journalLangmuir
bordeaux.page2687 - 2697
bordeaux.volume32
bordeaux.issue11
bordeaux.peerReviewedoui
hal.identifierhal-01294298
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01294298v1
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