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arXiv · 0710.5078

Two-step Doppler cooling of a three-level ladder system with an intermediate metastable level

Caroline Champenois·Gaetan Hagel·Martina Knoop·Marie Houssin·Cedric Zumsteg·Fernande Vedel·Michael Drewsen
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Abstract

Doppler laser cooling of a three-level ladder system using two near-resonant laser fields is analyzed in the case of the intermediate level being metastable while the upper level is short-lived. Analytical as well as numerical results for e.g. obtainable scattering rates and achievable temperatures are presented. When appropriate, comparisons with two-level single photon Doppler laser cooling is made. These results are relevant to recent experimental Doppler laser cooling investigations addressing intercombination lines in alkali-earth metal atoms and quadrupole transitions in alkali-earth metal ions.

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Caroline Champenois, Gaetan Hagel, Martina Knoop, Marie Houssin, Cedric Zumsteg, Fernande Vedel, Michael Drewsen. 2008-02-14. Two-step Doppler cooling of a three-level ladder system with an intermediate metastable level. https://doi.org/10.1103/physreva.77.033411

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