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Giant Lamb shift of atoms near lossy multimode optical micro-waveguides

Giant Lamb shift of atoms near lossy multimode optical micro-waveguides
Giant Lamb shift of atoms near lossy multimode optical micro-waveguides
Atoms coupled to optical fields strongly confined in two spatial dimensions, as in solid-state microstructures, can experience large Lamb shifts due to a spectrally strongly asymmetric mode density. We use the generic example of a quasi-one-dimensional waveguide structure driven close to cutoff frequency of a new transverse branch of propagating modes. We analytically find strong shifts of the atomic resonance frequency due to the modified vacuum, which can be an order of magnitude larger than the atomic linewidth. At the same time one gets significantly enhanced scattering of the guided light by the atom, which could be used as a tool to investigate these effects or to build non-destructive single-atom detectors.
0295-5075
459-465
Horak, P.
520489b5-ccc7-4d29-bb30-c1e36436ea03
Domokos, P.
a7e41e28-548c-49fc-901d-dad2fc17db36
Ritsch, H.
ff52b725-70a0-49f9-883a-b16436c8e6d8
Horak, P.
520489b5-ccc7-4d29-bb30-c1e36436ea03
Domokos, P.
a7e41e28-548c-49fc-901d-dad2fc17db36
Ritsch, H.
ff52b725-70a0-49f9-883a-b16436c8e6d8

Horak, P., Domokos, P. and Ritsch, H. (2003) Giant Lamb shift of atoms near lossy multimode optical micro-waveguides. Europhysics Letters, 61 (4), 459-465. (doi:10.1209/epl/i2003-00151-4).

Record type: Article

Abstract

Atoms coupled to optical fields strongly confined in two spatial dimensions, as in solid-state microstructures, can experience large Lamb shifts due to a spectrally strongly asymmetric mode density. We use the generic example of a quasi-one-dimensional waveguide structure driven close to cutoff frequency of a new transverse branch of propagating modes. We analytically find strong shifts of the atomic resonance frequency due to the modified vacuum, which can be an order of magnitude larger than the atomic linewidth. At the same time one gets significantly enhanced scattering of the guided light by the atom, which could be used as a tool to investigate these effects or to build non-destructive single-atom detectors.

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Published date: 2003

Identifiers

Local EPrints ID: 13887
URI: http://eprints.soton.ac.uk/id/eprint/13887
ISSN: 0295-5075
PURE UUID: 2689e48b-8042-4258-9e07-811917a137bc
ORCID for P. Horak: ORCID iD orcid.org/0000-0002-8710-8764

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Date deposited: 06 Jan 2005
Last modified: 09 Jan 2022 03:09

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Contributors

Author: P. Horak ORCID iD
Author: P. Domokos
Author: H. Ritsch

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