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Observation of suppression of light scattering induced by dipole-dipole interactions in a cold-atom ensemble

Observation of suppression of light scattering induced by dipole-dipole interactions in a cold-atom ensemble
Observation of suppression of light scattering induced by dipole-dipole interactions in a cold-atom ensemble
We study the emergence of collective scattering in the presence of dipole-dipole interactions when we illuminate a cold cloud of rubidium atoms with a near-resonant and weak intensity laser. The size of the atomic sample is comparable to the wavelength of light. When we gradually increase the number of atoms from 1 to ?450 , we observe a broadening of the line, a small redshift and, consistently with these, a strong suppression of the scattered light with respect to the noninteracting atom case. We compare our data to numerical simulations of the optical response, which include the internal level structure of the atoms.
1-5
Pellegrino, J.
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Bourgain, R.
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Jennewein, S.
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Sortais, Y.R.P.
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Browaeys, A.
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Jenkins, S.D.
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Ruostekoski, J.
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Pellegrino, J.
78cab079-843d-4df4-8cd5-d12a32baac33
Bourgain, R.
7b29a824-01d5-470f-b594-c39581eb91c6
Jennewein, S.
50f4cb12-c653-48c6-af73-b8ba539ece45
Sortais, Y.R.P.
6893a516-e600-43fc-80ab-7f7c7710275b
Browaeys, A.
db134975-b03c-4ee0-bb0f-5465c920f414
Jenkins, S.D.
65d861fb-b85a-4927-805a-7c906fca26c6
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4

Pellegrino, J., Bourgain, R., Jennewein, S., Sortais, Y.R.P., Browaeys, A., Jenkins, S.D. and Ruostekoski, J. (2014) Observation of suppression of light scattering induced by dipole-dipole interactions in a cold-atom ensemble. Physical Review Letters, 113 (13), 1-5. (doi:10.1103/PhysRevLett.113.133602).

Record type: Article

Abstract

We study the emergence of collective scattering in the presence of dipole-dipole interactions when we illuminate a cold cloud of rubidium atoms with a near-resonant and weak intensity laser. The size of the atomic sample is comparable to the wavelength of light. When we gradually increase the number of atoms from 1 to ?450 , we observe a broadening of the line, a small redshift and, consistently with these, a strong suppression of the scattered light with respect to the noninteracting atom case. We compare our data to numerical simulations of the optical response, which include the internal level structure of the atoms.

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e-pub ahead of print date: 26 September 2014
Published date: 26 September 2014
Organisations: Applied Mathematics

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Local EPrints ID: 369476
URI: http://eprints.soton.ac.uk/id/eprint/369476
PURE UUID: 59a8994a-de74-4023-b139-7d1470551cd3

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Date deposited: 29 Sep 2014 16:25
Last modified: 25 Nov 2021 20:59

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Contributors

Author: J. Pellegrino
Author: R. Bourgain
Author: S. Jennewein
Author: Y.R.P. Sortais
Author: A. Browaeys
Author: S.D. Jenkins
Author: J. Ruostekoski

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