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Photoionization cross-sections of the first excited states of sodium and lithium in a magneto-optical trap

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Abstract:

A two element magneto-optical trap (MOT) for Na and 7Li or 6Li is used to cool and trap each of them separately. A fraction of the cold atoms is maintained in the first 2P3/2 excited state by the cooling laser. These excited state atoms are ionized by laser light in the near-UV region, giving rise to a smaller number of trapped atoms and to different loading parameters. Photoionization cross-sections were derived out of these data. They are in reasonable agreement with data previously obtained using thermal samples and with theoretical predictions.

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Authors and Affiliations

  1. Institut für Experimentalphysik, Technische Universität Graz, Petersgasse 16, 8010 Graz, Austria, , , , , , AT

    V. Wippel, C. Binder, W. Huber & L. Windholz

  2. INFM, Dipartimento di Fisica, Università di Pisa, Via F. Buonarroti 2, 56127 Pisa, Italy, , , , , , IT

    M. Allegrini, F. Fuso & E. Arimondo

Authors
  1. V. Wippel
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  2. C. Binder
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  3. W. Huber
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  4. L. Windholz
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  5. M. Allegrini
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  6. F. Fuso
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  7. E. Arimondo
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Additional information

Received 21 March 2001 and Received in final form 3 August 2001

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Wippel, V., Binder, C., Huber, W. et al. Photoionization cross-sections of the first excited states of sodium and lithium in a magneto-optical trap. Eur. Phys. J. D 17, 285–291 (2001). https://doi.org/10.1007/s100530170002

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  • DOI: https://doi.org/10.1007/s100530170002

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