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Optical vortex torque measured with optically trapped microbarbells

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dc.abstract.enOptical vortex beams carry orbital angular momentum and thus exert torque on illuminated objects. A dielectric microtool–a microbarbell–is used in two-laser optical tweezers to measure the torque of a focused optical vortex. The tool was either freely rotating due to the applied torque or set into oscillations by the counteracting force. Four different trapping configurations provided different ways of sensing the torque and gave consistent results. The value of torque was determined by confronting the experimental results with numerical and analytical models.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorWasylczyk, Piotr
dc.contributor.authorDROBCZYŃSKI, SŁAWOMIR
dc.contributor.authorMASAJADA, JAN
dc.contributor.authorLAMPERSKA, WERONIKA
dc.date.accessioned2024-01-25T15:58:26Z
dc.date.available2024-01-25T15:58:26Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.number15
dc.description.volume59
dc.identifier.doi10.1364/AO.385167
dc.identifier.issn1559-128X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/114985
dc.identifier.weblinkhttps://www.osapublishing.org/viewmedia.cfm?URI=ao-59-15-4703&seq=0
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofApplied Optics
dc.relation.pages4703
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleOptical vortex torque measured with optically trapped microbarbells
dc.typeJournalArticle
dspace.entity.typePublication