Optical forces from an evanescent wave on a magnetodielectric small particle

We report the first study on the optical force exerted by an evanescent wave on a small sphere with both electric and magnetic response to the incident field, immersed in an arbitrary nondissipative medium. New expressions and effects from their gradient, radiation pressure, and curl components are...

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Bibliographic Details
Published inarXiv.org
Main Authors Nieto-Vesperinas, M, Saenz, J J
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 30.01.2012
Subjects
Evanescent waves
Magnetic dipoles
Physics - Optics
Radiation pressure
Surface waves
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Summary:We report the first study on the optical force exerted by an evanescent wave on a small sphere with both electric and magnetic response to the incident field, immersed in an arbitrary nondissipative medium. New expressions and effects from their gradient, radiation pressure, and curl components are obtained due to the particle induced electric and magnetic dipoles, as well as to their mutual interaction. We predict possible dramatic changes in the force depending on either the host medium, the polarization and the nature of the surface wave.
ISSN:2331-8422
DOI:10.48550/arxiv.1201.6153