Nonconservative electric and magnetic optical forces on submicron dielectric particles
Entidad
UAM. Departamento de Física de la Materia CondensadaEditor
American Physical SocietyFecha de edición
2011-03-23Cita
10.1103/PhysRevA.83.033825
Physics review A 83.3 (2011): 033825
ISSN
1050-2947 (print); 1094-1622 (online)DOI
10.1103/PhysRevA.83.033825Financiado por
This work has been supported by the Spanish MEC through the Consolider NanoLight (CSD2007-00046) and FIS2006-11170-C01-C02 and FIS2009-13430-C01-C02 research grants. Work by R.G.-M. financed by the MICINN “Juan de la Cierva” GrantProyecto
Gobierno de España. CSD2007-00046; Gobierno de España. FIS2006-11170-C01-C02; Gobierno de España. FIS2009-13430-C01-C02Versión del editor
http://dx.doi.org/10.1103/PhysRevA.83.033825Materias
FísicaDerechos
© 2011 American Physical SocietyResumen
We present a study of the total force on a small lossless dielectric particle, which presents both an electric and magnetic response, in a optical vortex wave field.We show that the force is a simple combination of conservative and nonconservative steady forces that can rectify the flow of magnetodielectric particles. In a vortex lattice the electric-magnetic dipolar interaction can spin the particles either in or out of the whirl sites leading to trapping or diffusion. Specifically, we analyze force effects on submicron silicon spheres in the near infrared, proving that the results previously discussed for hypothetical magnetodielectric particles can be observed for these Si particles
Lista de ficheros
Google Scholar:Gómez-Medina, Raquel
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Nieto-Vesperinas, Manuel
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Sáenz Gutiérrez, Juan José
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