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- 41P1-3 1D2 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.
Original language | English |
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Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
Subtitle of host publication | ROMOPTO '97: 5th Conference on Optics; Bucharest; ; 9 September 1997 through 9 September 1997; Code 74547 |
Pages | 541-547 |
Number of pages | 7 |
Volume | 3405 |
DOIs | |
Publication status | Published - 1998 |
Keywords
- Coherent optical effects
- High resolution spectroscopy
- Multiphoton processes
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Fields of Expertise
- Sonstiges