Calculation of optical forces on a dielectric bead in a geometrically aberrated trap

Artur Carnicer; Denis Garnier; Salvador Bosch; Ignasi Juvells

doi:10.1117/12.826065

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21 August 2009 Calculation of optical forces on a dielectric bead in a geometrically aberrated trap

Artur Carnicer, Denis Garnier, Salvador Bosch, Ignasi Juvells

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Proceedings Volume 7428, Current Developments in Lens Design and Optical Engineering X; 74280N (2009) https://doi.org/10.1117/12.826065
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Micron-sized particles can be trapped by means of a highly focused beam; light is concentrated in a tiny spot using a high numerical aperture objective. In this communication we describe a numerical tool we have developed for obtaining the force exerted by a beam on a spherical dielectric particle in realistic conditions. The system (a water immersion microscope objective) is simulated using an optical system design software that provides the required information to feed the application. The calculation of the force is carried out using the ray-optics (Mie) approach.

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Artur Carnicer, Denis Garnier, Salvador Bosch, and Ignasi Juvells "Calculation of optical forces on a dielectric bead in a geometrically aberrated trap", Proc. SPIE 7428, Current Developments in Lens Design and Optical Engineering X, 74280N (21 August 2009); https://doi.org/10.1117/12.826065

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