corner
corner
APS » Journals » Phys. Rev. A » Volume 74 » Issue 4
< Previous Article | Next Article >

Phys. Rev. A 74, 043407 (2006) [7 pages]

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

Download: PDF (494 kB) Buy this article Export: BibTeX or EndNote (RIS)

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

Received 1 June 2006; published 12 October 2006

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.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.74.043407
DOI:
10.1103/PhysRevA.74.043407
PACS:
32.80.Pj, 42.50.Gy, 03.67.−a
 
< Previous Article | Next Article >