Efficient magneto-optical trapping of Yb atoms with a violet laser diode

Details Efficient magneto-optical trapping of Yb atoms with a violet laser diode Efficient magneto-optical trapping of Yb atoms with a violet laser diode

2003-09-05

arxiv.org/abs/physics/0309034v1

Physics

Atomic Physics

5 pages, 3 figures, 1 table, Phys. Rev. A (to be published)

Scientific paper

10.1103/PhysRevA.68.055401

We report the first efficient trapping of rare-earth Yb atoms with a high-power violet laser diode (LD). An injection-locked violet LD with a 25 mW frequency-stabilized output was used for the magneto-optical trapping (MOT) of fermionic as well as bosonic Yb isotopes. A typical number of $4\times 10^6$ atoms for $^{174}$Yb with a trap density of $\sim 1\times10^8/$cm$^3$ was obtained. A 10 mW violet external-cavity LD (ECLD) was used for the one-dimensional (1D) slowing of an effusive Yb atomic beam without a Zeeman slower resulting in a 35-fold increase in the number of trapped atoms. The overall characteristics of our compact violet MOT, e.g., the loss time of 1 s, the loading time of 400 ms, and the cloud temperature of 0.7 mK, are comparable to those in previously reported violet Yb MOTs, yet with a greatly reduced cost and complexity of the experiment.

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