Laser cooling of trapped three-level ions: Designing two-level systems for sideband cooling
- 1 April 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 49 (4), 2771-2779
- https://doi.org/10.1103/physreva.49.2771
Abstract
Laser cooling of three-level ions of the cascade, vee, and lambda configuration is considered with simultaneous excitation on a weak and strong transition. Choosing appropriate parameters for the Rabi frequencies and the respective detunings allows one to eliminate adiabatically one of the levels. The thus designed two-level ion can acquire decay rates Γ’ smaller than the trap frequency ν such that sideband cooling becomes possible and accordingly allows cooling of the ion to its lowest oscillator state 〈n〉=0 in the trap. Explicit expressions for the detunings and the Rabi frequencies for sideband cooling of the effective two-level system are derived.Keywords
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