Inversion Of Gradient Forces For High Refractive Index Particles In Optical Trapping.

dc.creatorAmbrosio, L A
dc.creatorHernández-Figueroa, H E
dc.date2010-Mar
dc.date2015-11-27T13:17:47Z
dc.date2015-11-27T13:17:47Z
dc.date.accessioned2018-03-29T01:10:44Z
dc.date.available2018-03-29T01:10:44Z
dc.identifierOptics Express. v. 18, n. 6, p. 5802-8, 2010-Mar.
dc.identifier1094-4087
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/20389597
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/198812
dc.identifier20389597
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1299045
dc.descriptionThe unexpected fact that a spherical dielectric particle with refractive index higher than the surrounding medium will not always be attracted towards high intensity regions of the trapping beam is fully demonstrated here using a simple ray optics approach. This unusual situation may happen due to the inversion of gradient forces, as shown here. Therefore, conventional schemes, such the one based on the use of two counter-propagating beams to cancel the scattering forces, will fail to trap the particle. However, effective trapping still can be obtained by adopting suitable incident laser beams.
dc.description18
dc.description5802-8
dc.languageeng
dc.relationOptics Express
dc.relationOpt Express
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectComputer Simulation
dc.subjectModels, Chemical
dc.subjectNanoparticles
dc.subjectOptical Tweezers
dc.subjectRefractometry
dc.subjectStress, Mechanical
dc.titleInversion Of Gradient Forces For High Refractive Index Particles In Optical Trapping.
dc.typeArtículos de revistas


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