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Proceedings Paper

Vitality of optical vortices
Author(s): Filippus S. Roux
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Paper Abstract

Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here we propose a method to distinguish between vortex dipoles that have just been created and those that are about to be annihilated. We use first and second order transverse derivatives of the optical field to construct a quantity that reveals the nature of the dipoles. Numerical examples are provided as demonstration of the method.

Paper Details

Date Published: 25 February 2014
PDF: 6 pages
Proc. SPIE 8999, Complex Light and Optical Forces VIII, 89990T (25 February 2014); doi: 10.1117/12.2038815
Show Author Affiliations
Filippus S. Roux, CSIR National Laser Ctr. (South Africa)

Published in SPIE Proceedings Vol. 8999:
Complex Light and Optical Forces VIII
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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