Design of microcavity resonators for single-atom detection
Design of microcavity resonators for single-atom detection
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 100nm 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 sufficiently strong to provide a measurable effect. Atom trapping and detection depend on a variety of system parameters and experimental realizations differ for different atoms.
011670-[13pp]
Rosenblit, Michael
de3832aa-bc9a-4412-82d9-ef53c349091e
Horak, Peter
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Fleminger, Eyal
54eb1ef3-c8ca-4351-9ab9-b4997e360d5f
Japha, Yonathan
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Folman, Ron
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2007
Rosenblit, Michael
de3832aa-bc9a-4412-82d9-ef53c349091e
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Fleminger, Eyal
54eb1ef3-c8ca-4351-9ab9-b4997e360d5f
Japha, Yonathan
9a31a215-37ec-4782-9115-1bc92e453d76
Folman, Ron
827d9cc3-f564-44fd-b3c4-725bd2a58cc0
Rosenblit, Michael, Horak, Peter, Fleminger, Eyal, Japha, Yonathan and Folman, Ron
(2007)
Design of microcavity resonators for single-atom detection.
Journal of Nanophotonics, 1 (1), .
(doi:10.1117/1.2835450).
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 100nm 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 sufficiently strong to provide a measurable effect. Atom trapping and detection depend on a variety of system parameters and experimental realizations differ for different atoms.
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Published date: 2007
Identifiers
Local EPrints ID: 50177
URI: http://eprints.soton.ac.uk/id/eprint/50177
ISSN: 1934-2608
PURE UUID: 677ef1e0-401d-40dc-8844-80ef46022530
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Date deposited: 31 Jan 2008
Last modified: 16 Mar 2024 03:27
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Contributors
Author:
Michael Rosenblit
Author:
Eyal Fleminger
Author:
Yonathan Japha
Author:
Ron Folman
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