Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/91915
Type: Artigo de evento
Title: Gradient Forces On Optical Tweezers For Conventional And Metamaterial Particles Using Bessel Beams
Author: Ambrosio L.A.
Hernandez-Figueroa H.E.
Abstract: By numerically evaluating the beam-shape and the Mie coefficients for an incident Bessel Beam, we show some preliminary results in trapping both conventional and metamaterial particles in optical tweezers, by calculating the gradient forces exerted on them. Some comparisons between scattering phenomena and the ray optics regime for optical trapping are made. We conclude that, contrary to the conventional case of positive refractive index, the gradient forces acting on a metamaterial particle may not invert when the relative refractive index n goes from |n| > 1 to |n| < 1. ©2009IEEE.
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Rights: fechado
Identifier DOI: 10.1109/IMOC.2009.5427612
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-77951718530&partnerID=40&md5=7b76fe085a5ae04908a35f8f389d6ca5
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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