Bunching-induced asymmetry in degenerate four-wave mixing with cold atoms

G. L. Gattobigio, F. Michaud, J. Javaloyes, J. W. R. Tabosa, and R. Kaiser
Phys. Rev. A 74, 043407 – Published 12 October 2006

Abstract

We have investigated degenerate four-wave mixing in a sample of cold rubidium atoms. A red-blue asymmetry is observed for high intensities of the pumping beams. This asymmetry is explained by the spatial bunching of the atoms in the nodes or antinodes of the strong standing wave of the pump beams. This explanation is confirmed by different experimental configurations and by numerical simulations.

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  • Received 1 June 2006

DOI:https://doi.org/10.1103/PhysRevA.74.043407

©2006 American Physical Society

Authors & Affiliations

G. L. Gattobigio1,2, F. Michaud1, J. Javaloyes3, J. W. R. Tabosa4, and R. Kaiser1

  • 1Institut Non Linéaire de Nice, UMR 6618 CNRS, 1361 route des Lucioles, F-06560 Valbonne, France
  • 2Dipartimento di Fisica dell’Universita’ di Ferrara and INFN-Sezione di Ferrara, 44100 Ferrara, Italy
  • 3Department de Fisica Interdisciplinar, IMEDEA (CSIC-UIB), C/Miquel Marques, 21, E-07190 Esporles, Spain
  • 4Departamento de Fisica, Universidade Federal de Pernambuco, Av. Professor Luiz Freire, s/n Cidade Universitaria, 50670-901, Recife-PE, Brasil

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Vol. 74, Iss. 4 — October 2006

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