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Phys. Rev. A 67, 031401(R) (2003) [4 pages]

Optical lattice in a high-finesse ring resonator

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B. Nagorny*, Th. Elsässer, H. Richter, and A. Hemmerich
Institut für Laser-Physik, Universität Hamburg, Jungiusstrasse 9, D-20355 Hamburg, Germany

D. Kruse, C. Zimmermann, and Ph. Courteille
Physikalisches Institut, Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany

Received 4 December 2002; published 18 March 2003

An one-dimensional optical lattice with rubidium atoms (85Rb) is formed inside a ring resonator with a finesse of 1.8×105 and a large mode volume of 2.6mm3. We typically trap several times 106 atoms at densities up to 1012cm-3 and temperatures between 25 and 125μK. Despite of the narrow bandwidth (17.3 kHz) of the cavity, heating due to intracavity intensity fluctuations is kept at a low level, such that the time evolution of the temperature is determined by evaporative cooling.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.031401
DOI:
10.1103/PhysRevA.67.031401
PACS:
32.80.Pj, 42.50.Vk, 42.62.Fi, 42.50.-p

*Electronic address: bnagorny@physnet.uni-hamburg.de

 
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