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Optics Letters

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  • Vol. 26, Iss. 23 — Dec. 1, 2001
  • pp: 1837–1839

Resonator-enhanced optical dipole trap for fermionic lithium atoms

A. Mosk, S. Jochim, H. Moritz, Th. Elsässer, M. Weidemüller, and R. Grimm  »View Author Affiliations


Optics Letters, Vol. 26, Issue 23, pp. 1837-1839 (2001)
http://dx.doi.org/10.1364/OL.26.001837


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Abstract

We demonstrate a novel optical dipole trap that is based on enhancement of the optical power density of a Nd:YAG laser beam in a resonator. The trap is particularly suited for experiments with ultracold gases, as it combines a potential depth of the order of 1 mK with storage times of several tens of seconds. We study the interactions in a gas of fermionic lithium atoms in our trap and observe the influence of spin-changing collisions and off-resonant photon scattering. A key element in reaching long storage times is the use of an ultralow-noise laser. The dependence of storage time on laser noise is investigated.

© 2001 Optical Society of America

OCIS Codes
(020.2070) Atomic and molecular physics : Effects of collisions
(020.7010) Atomic and molecular physics : Laser trapping

Citation
A. Mosk, S. Jochim, H. Moritz, Th. Elsässer, M. Weidemüller, and R. Grimm, "Resonator-enhanced optical dipole trap for fermionic lithium atoms," Opt. Lett. 26, 1837-1839 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-23-1837


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