Design of a trapping potential for detecting single atoms by a microdisk resonator on a chip

Michael Rosenblit; Yonathan Japha; Peter Horak; Ron Folman

doi:10.1117/12.662290

20 April 2006 Design of a trapping potential for detecting single atoms by a microdisk resonator on a chip

Michael Rosenblit, Yonathan Japha, Peter Horak, Ron Folman

Proceedings Volume 6195, Nanophotonics; 61950B (2006) https://doi.org/10.1117/12.662290
Event: SPIE Photonics Europe, 2006, Strasbourg, France

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.

Citation Download Citation

Michael Rosenblit, Yonathan Japha, Peter Horak, and Ron Folman "Design of a trapping potential for detecting single atoms by a microdisk resonator on a chip", Proc. SPIE 6195, Nanophotonics, 61950B (20 April 2006); https://doi.org/10.1117/12.662290

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