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Loading of a Rb magneto-optic trap from a getter source

Rapol, Umakant D and Wasan, Ajay and Natarajan, Vasant (2001) Loading of a Rb magneto-optic trap from a getter source. In: Physical Review A (Atomic, Molecular, and Optical Physics), 64 (2). 023402/1-5.


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We study the properties of a Rb magneto-optic trap loaded from a commercial getter source. The source provides a large flux of atoms for the trap along with the capability of rapid turn off necessary for obtaining long trap lifetimes. We have studied the trap loading at two different values of background pressure to determine the cross section for Rb-N2 collisions to be 3.5(4)310214 cm2 and that for Rb-Rb collisions to be of order 3310213 cm2. At a background pressure of 1.331029 torr, we load more than 108 atoms into the trap with a time constant of 3.3 s. The 1/e lifetime of trapped atoms is 13 s limited only by background collisions.

Item Type: Journal Article
Publication: Physical Review A (Atomic, Molecular, and Optical Physics)
Publisher: American Physical Society (APS)
Additional Information: Copyright for this article belongs to American Physical Society (APS).
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 10 Dec 2004
Last Modified: 19 Sep 2010 04:12
URI: http://eprints.iisc.ac.in/id/eprint/445

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