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Proceedings Paper

Experiments with strontium in a vapor cell magneto-optic trap
Author(s): Kurt R. Vogel; Tim P. Dinneen; Alan C. Gallagher; John L. Hall
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Paper Abstract

In a ceramic vapor cell we have created a robust Sr magneto- optical trap that stores about 108 atoms with lifetimes > 200 ms. We eliminate the 5p 1P1 yields 4d1D2 yields 5p 3P2 leak and achieve a 10-fold improvement in trap lifetime by re-pumping the 5p 3P0,2 dark states with 679 nm and 707 nm light. The observed lifetime is now limited by cold collision losses, and we have preliminary measurements of the 2-body loss rate. Direct readout of the trap velocity distribution is possible using the narrow 5s2 1S0 yields 5p 3P1 intercombination line at 689 nm. We can also cool with this narrow transition and have achieved a 40-fold 1D velocity compression for about 5 percent of the trapped atoms by applying this second-stage cooling.

Paper Details

Date Published: 15 May 1998
PDF: 8 pages
Proc. SPIE 3270, Methods for Ultrasensitive Detection, (15 May 1998); doi: 10.1117/12.308365
Show Author Affiliations
Kurt R. Vogel, Univ. of Colorado/Boulder and National Institute of Standards and Technol. (United States)
Tim P. Dinneen, Univ. of Colorado/Boulder and National Institute of Standards and Technol. (United States)
Alan C. Gallagher, Univ. of Colorado/Boulder and National Institute of Standards and Technol. (United States)
John L. Hall, Univ. of Colorado/Boulder and National Institute of Standards and Technol. (United States)


Published in SPIE Proceedings Vol. 3270:
Methods for Ultrasensitive Detection
Bryan L. Fearey, Editor(s)

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