Five-beam magneto-optical trap and optical molasses |
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Authors: | A di Stefano D Wilkowski JH Müller E Arimondo |
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Institution: | (1) Istituto Nazionale di Fisica della Materia and Dipartimento di Fisica, Università di Pisa, I-56126 Pisa, Italia (Fax: +39-50/844-333, E-mail: Arimondo@mailbox.difi.unipi.it), IT |
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Abstract: | We have operated a magneto-optical trap and optical molasses for the laser cooling of cesium atoms on the basis of a five-beam
laser configuration. For the magneto-optical trap two laser beams counterpropagate along the axis of a quadrupole trap and
the remaining three beams propagate in the orthogonal plane at 120° to each other. The same optical configuration was used
for the optical molasses. We have tested the efficiency in atom collection and the temperatures reached in both cooling processes.
In comparison to previous results on a six-beam configuration, a lower number of atoms is collected, while comparable densities
are realized. The atomic temperatures have been measured through a delayed shadow-image technique, where one of the running-wave
cooling beams produces an absorptive image of the atoms on a camera.
Received: 14 January 1999 / revised version: 23 June 1999 / Published online: 8 September 1999 |
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Keywords: | PACS: 32 80Pj 42 50 Vk |
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