| Issue |
Europhys. Lett.
Volume 45, Number 2, January 1999
|
|
|---|---|---|
| Page(s) | 156 - 161 | |
| Section | Atomic and molecular physics | |
| DOI | https://doi.org/10.1209/epl/i1999-00140-7 | |
| Published online | 01 September 2002 | |
A magneto-optical trap for chromium with population repumping via intercombination lines
Fakultät für Physik and Optik-Zentrum
Konstanz, Universität Konstanz 78457 Konstanz, Germany
Received:
15
July
1998
Accepted:
12
November
1998
We present the realisation of a magneto-optical trap for chromium.
52Cr atoms are loaded directly from a thermal beam. The trap
lifetime is enhanced by using two red lasers to repump population
that has decayed, via intercombination lines, to metastable levels
back into the cooling cycle. We have measured the wavelengths of
these intercombination lines and observed coherent Raman spectra. The
observed density of ~ 
is currently limited by
collisions with the hot beam.
PACS: 32.80.Pj – Optical cooling of atoms; trapping
© EDP Sciences, 1999
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