Improved high resolution spectroscopy with cold magnesium atoms

Author

Douillet, A. ; Keupp, J. ; Mehlstäubler, T.E. ; Rehbein, N. ; Wolff, H. ; Rasel, E.M. ; Ertmer, W.

Author_Institution

Inst. fur Quantenoptik, Hannover Univ., Germany

fYear

2003

fDate

4-8 May 2003

Firstpage

1092

Lastpage

1094

Abstract

We report on recent results in high precision spectroscopy with cold magnesium atoms. Resolutions as high as 290 Hz have been achieved with our Ramsey-Borde interferometer tuned to the 3¹S₀→3³P₁ intercombination line at 457.2 nm. The potential short-term stability inferred from the interference signal is 8×10^-14 in 1 s. The residual atomic motion of the atoms, cooled to the Doppler limit, is identified as a main contribution to the contrast decay. In order to improve the performance of our interferometer, we are currently setting up a second experiment, where we can push the temperature limit to the μK-regime.

Keywords

frequency stability; interference (signal); laser cooling; laser mode locking; magnesium; particle interferometry; signal resolution; spectral line breadth; thermal expansion; μK-regime temperature limit; 1 s; 457.2 nm; Doppler limit cooling; Mg; Ramsey-Borde interferometer tuning; cold magnesium atoms; contrast decay; high resolution spectroscopy; interference signal; potential short term stability; residual atomic motion; Atom lasers; Atom optics; Atomic beams; Atomic measurements; Frequency; Magnesium; Optical interferometry; Optical scattering; Spectroscopy; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International

ISSN

1075-6787

Print_ISBN

0-7803-7688-9

Type

conf

DOI

10.1109/FREQ.2003.1275243

Filename

1275243