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Proceedings Paper

Design of a trapping potential for detecting single atoms by a microdisk resonator on a chip
Author(s): Michael Rosenblit; Yonathan Japha; Peter Horak; Ron Folman
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Paper Abstract

We investigate simultaneous optical trapping and optical detection of a single Rb atom near the surface of a toroidal microdisk. Light is coupled into two high-Q whispering-gallery modes of the disk which provide attractive and repulsive potentials, respectively, via their evanescent fields. The sum potential including van-der-Waals and Casimir-Polder surface forces exhibits a minimum at distances of the order of 100 nm from the disk surface. The back-action of an atom held in this trap on the light fields is sufficiently strong to provide a measurable effect. We discuss atom trapping and detection properties in dependence on a variety of system parameters.

Paper Details

Date Published: 20 April 2006
PDF: 10 pages
Proc. SPIE 6195, Nanophotonics, 61950B (20 April 2006); doi: 10.1117/12.662290
Show Author Affiliations
Michael Rosenblit, Ben Gurion Univ. of the Negev (Israel)
Yonathan Japha, Ben Gurion Univ. of the Negev (Israel)
Peter Horak, Univ. of Southampton (United Kingdom)
Ron Folman, Ben Gurion Univ. of the Negev (Israel)

Published in SPIE Proceedings Vol. 6195:
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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