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Journal of Nanophotonics

Design of microcavity resonators for single-atom detection
Author(s): Michael Rosenblit; Peter Horak; Eyal Fleminger; Yonathan Japha; Ron Folman
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Paper Abstract

Whispering gallery modes of a microdisk resonator are useful for the optical detection of single rubidium and cesium atoms near the surface of a substrate. Light is coupled into two high-Q whispering-gallery modes of the disk which can provide attractive and/or repulsive potentials, respectively, via their evanescent fields. The sum potential, including van der Waals/Casimir-Polder surface forces, may be tuned to exhibit a minimum at distances on the order of 100 nm from the disk surface. Simultaneously optically trapping and detecting is possible, with the back-action of an atom held in this trap on the light fields being suffciently strong to provide a measurable effect. Atom trapping and detection depend on a variety of system parameters and experimental realizations differ for different atoms.

Paper Details

Date Published: 1 December 2007
PDF: 13 pages
J. Nanophoton. 1(1) 011670 doi: 10.1117/1.2835450
Published in: Journal of Nanophotonics Volume 1, Issue 1
Show Author Affiliations
Michael Rosenblit, Ben-Gurion Univ. of the Negev (Israel)
Peter Horak, Univ. of Southampton (United Kingdom)
Eyal Fleminger, Ben-Gurion Univ. of the Negev (Israel)
Yonathan Japha, Ben-Gurion Univ. of the Negev (Israel)
Ron Folman, Ben-Gurion Univ. of the Negev (Israel)

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