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Proceedings Paper

Probing quantum cores of optical vortices with atoms
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Paper Abstract

Optical vortices are points of zero intensity in a two dimensional, classical optical field. As first discussed by Berry and Dennis [Berry, M. V. and Dennis, M. R., "Quantum cores of optical phase singularities" Journal of Optics A 6, S178-S180 (2004)] these singularities are replaced by 'quantum cores' in a deeper level of description. In a fully quantized theory of optical fields an excited atom trapped at the singularity can emit light spontaneously and hence soften the perfect zero of an optical vortex. More recently Barnett [Barnett, S. M., "On the quantum cores of a optical vortex," Journal of Modern Optics 55, 2279-2292 (2008)] presented a more realistic analysis of quantum cores which accounts for the effect of the trapping potential on the transition dynamics inside a vortex core. Here, we revisit the scenario of emission near an optical vortex in the realistic setting of Barnett.

Paper Details

Date Published: 16 February 2011
PDF: 8 pages
Proc. SPIE 7950, Complex Light and Optical Forces V, 79500U (16 February 2011); doi: 10.1117/12.876882
Show Author Affiliations
Jörg B. Götte, Univ. of Bristol (United Kingdom)
Mark R. Dennis, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 7950:
Complex Light and Optical Forces V
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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