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Experiments With Strontium in a Vapor Cell Magneto-Optic Trap

Published

Author(s)

K R. Vogel, Tim P. Dinneen, Alan Gallagher, J L. Hall

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->4d 1d2->5p 3P2 leak and achieve a 10-fold improvement in trap lifetime by repumping the 5p 3Po.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 (7kHz) 5s21So->5p 3P1 intercombination line at 689 nm. We can also cool with this narrow transition and have achieved a 40-fold 1-D velocity compression for about 5% of the trapped atoms by applying this second-stage cooling.
Proceedings Title
Methods for Ultrasensitive Detection | | Methods for Ultrasensitive Detection | SPIE
Conference Dates
January 1, 1998
Conference Title
Proceedings of SPIE--the International Society for Optical Engineering

Keywords

alkaline earths, cold collisions, frequency metrology, laser cooling, laser trapping

Citation

Vogel, K. , Dinneen, T. , Gallagher, A. and Hall, J. (2000), Experiments With Strontium in a Vapor Cell Magneto-Optic Trap, Methods for Ultrasensitive Detection | | Methods for Ultrasensitive Detection | SPIE (Accessed April 23, 2024)
Created May 1, 2000, Updated February 17, 2017