Axial and lateral trapping efficiency of Laguerre-Gaussian modes in inverted optical tweezers

O'Neil, A.T. and Padgett, M.J. (2001) Axial and lateral trapping efficiency of Laguerre-Gaussian modes in inverted optical tweezers. Optics Communications, 193(1-6), 45 -50. (doi:10.1016/S0030-4018(01)01198-1)

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Publisher's URL: http://dx.doi.org/10.1016/S0030-4018(01)01198-1

Abstract

Within inverted optical tweezers we measure both the lateral and axial trapping efficiency obtained with Gaussian and high-order Laguerre-Gaussian beams. Our results confirm that, for larger particles, the axial trapping is improved by using a Laguerre-Gaussian beam but, contrary to earlier suggestions, that the lateral efficiency is unchanged. We show that this latter observation is compatible with a ray-optical model of the trapping mechanism.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles
Authors: O'Neil, A.T., and Padgett, M.J.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Communications
ISSN:0030-4018

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