Optical pumping via a velocity-selective state

Norbert Leinfellner; Laurentius Windholz; Igor E. Mazets

doi:10.1117/12.312805

2 July 1998 Optical pumping via a velocity-selective state

Norbert Leinfellner, Laurentius Windholz, Igor E. Mazets

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312805
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

We present a new scheme of sub-Doppler laser cooling for atoms used in atomic frequency standards, particularly for ⁴⁰Ca. We perform calculations concerning optical pumping via a velocity- selective state based upon velocity-selective coherent population trapping. Optical pumping on the Raman transition 4¹S₀- 4¹P₁-3¹D₂ leads to population of the metastable singlet state followed by a decay into the metastable triplet state 4P₁. The momentum distribution of atoms in that state (with a half-maximum width of about one corresponding photon recoil momentum) is a direct replica of the distribution of atoms in the 3D₂ state.

Citation Download Citation

Norbert Leinfellner, Laurentius Windholz, and Igor E. Mazets "Optical pumping via a velocity-selective state", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312805

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