J Guo et al 1996 Quantum Semiclass. Opt. 8 557 doi:10.1088/1355-5111/8/3/018
Laser cooling of Rydberg atoms by velocity-selective coherent population trapping
J Guo
, E Korsunsky
and E Arimondo
One-dimensional velocity-selective coherent population trapping (VSCPT) in a cascade atomic configuration, with the second excited level a Rydberg state, is investigated through numerical calculations. The trapping efficiency for the case of travelling wave lasers is derived from the solution of the optical Bloch equations. For excitation by bichromatic standing waves, the energy-band approach is applied. Although the cooling process is limited by the spontaneous emission decay of the Rydberg state, the coexistence of polarization-gradient cooling and VSCPT in the case of standing waves allows the preparation of the majority of the atomic population in a cold Rydberg state.
- PACS
-
32.80.Rm Multiphoton ionization and excitation to highly excited states
34.50.-s Scattering of atoms and molecules
42.50.Ct Quantum description of interaction of light and matter; related experiments
32.50.+d Fluorescence, phosphorescence (including quenching)
- Subjects
- Dates
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Issue 3 (June 1996)
Received 20 November 1995, in final form 29 January 1996
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Laser cooling of Rydberg atoms by velocity-selective coherent population trapping
J Guo et al 1996 Quantum Semiclass. Opt. 8 557
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