Theoretical study of a cold-atom beam splitter

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Naceur Gaaloul,^1,2 Annick Suzor-Weiner,¹ Laurence Pruvost,³ Mourad Telmini,² and Eric Charron¹
¹Laboratoire de Photophysique Moléculaire, CNRS, Bâtiment 210, Université Paris–Sud 11, 91405 Orsay Cedex, France
²Laboratoire de Spectroscopie Atomique, Moléculaire et Applications, Department of Physics, Faculty of Sciences of Tunis, University Tunis El Manar, 2092 Tunis, Tunisia
³Laboratoire Aimé Cotton, CNRS, Bâtiment 505, Université Paris–Sud 11, 91405 Orsay Cedex, France

Received 20 January 2006; published 24 August 2006

Atheoretical model is presented for the study of the dynamicsof a cold atomic cloud falling in the gravity fieldin the presence of two crossing dipole guides. The cloudis split between the two branches of this laser guide,and we compare experimental measurements of the splitting efficiency withsemiclassical simulations. We then explore the possibilities of optimization ofthis beam splitter. Our numerical study also gives access todetailed information, such as the atom temperature after the splitting.

URL:	http://link.aps.org/doi/10.1103/PhysRevA.74.023620
DOI:	10.1103/PhysRevA.74.023620
PACS:	03.75.Be; 32.80.Pj; 32.80.-t; 39.25.+k 03.75.Be Atom and neutron optics 32.80.Pj Optical cooling of atoms; trapping 32.80.-t Photon interactions with atoms 39.25.+k Atom manipulation including scanning probe microscopy, laser cooling, etc YEAR: 2006
KEYWORDS:	atom optics, optical beam splitters

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