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Single-atom detection using whispering gallery modes of microdisk resonators

Single-atom detection using whispering gallery modes of microdisk resonators
Single-atom detection using whispering gallery modes of microdisk resonators
We investigate the possibility of using dielectric microdisk resonators for the optical detection of single atoms trapped and cooled in magnetic microtraps near the surface of a substrate. The bound and evanescent fields of optical whispering-gallery modes are calculated and the coupling to straight waveguides is investigated using finite-difference time domain solutions of Maxwell's equations. Results are compared with semianalytical solutions based on coupled mode theory. We discuss atom detection efficiencies and the feasibility of nondestructive measurements in such a system depending on key parameters such as disk size, disk-waveguide coupling, and scattering losses.
1050-2947
Rosenblit, M.
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Horak, P.
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Helsby, S.
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Folman, R.
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Rosenblit, M.
9bf98e4b-37a0-489d-95d7-188d0a57a322
Horak, P.
520489b5-ccc7-4d29-bb30-c1e36436ea03
Helsby, S.
6ae6295e-2e50-4d1f-a683-38f6fcc861a6
Folman, R.
ad62364b-cc0f-4058-80be-d9d83ae35e66

Rosenblit, M., Horak, P., Helsby, S. and Folman, R. (2004) Single-atom detection using whispering gallery modes of microdisk resonators. Physical Review A, 70 (5), [053808]. (doi:10.1103/PhysRevA.70.053808).

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Abstract

We investigate the possibility of using dielectric microdisk resonators for the optical detection of single atoms trapped and cooled in magnetic microtraps near the surface of a substrate. The bound and evanescent fields of optical whispering-gallery modes are calculated and the coupling to straight waveguides is investigated using finite-difference time domain solutions of Maxwell's equations. Results are compared with semianalytical solutions based on coupled mode theory. We discuss atom detection efficiencies and the feasibility of nondestructive measurements in such a system depending on key parameters such as disk size, disk-waveguide coupling, and scattering losses.

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Published date: 2004

Identifiers

Local EPrints ID: 16075
URI: http://eprints.soton.ac.uk/id/eprint/16075
ISSN: 1050-2947
PURE UUID: 3c89798a-1570-4e17-9e41-792ed706a123
ORCID for P. Horak: ORCID iD orcid.org/0000-0002-8710-8764

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Date deposited: 23 Jun 2005
Last modified: 07 Jul 2021 01:39

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Contributors

Author: M. Rosenblit
Author: P. Horak ORCID iD
Author: S. Helsby
Author: R. Folman

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