New prospects for precision spectroscopy on ultra-cold magnesium atoms

Author

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

Author_Institution

Institut fur Quantenoptik, Hannover Univ., Germany

fYear

2003

fDate

22-27 June 2003

Firstpage

304

Abstract

Latest results in high precision spectroscopy, where resolutions as low as 290 Hz have been obtained with the Ramsey-Borde interferometer tuned to the 3¹S₀ → 3³P₁ intercombination line at 457 nm are reported. The potential short- term stability inferred from the signal is 8×10^-14 in 1 s comparable to the stability of present state-of-the-art microwave frequency standards. The residual atomic motion of the atoms, which is due to the Doppler temperature of 2 mK., is identified as a main limiting factor for the achievable resolution. The prospects for magnesium, the current status of the experimental implementation and theoretical studies of the cooling mechanisms are presented.

Keywords

atom optics; frequency standards; laser cooling; magnesium; particle interferometry; 2 mK; 457 nm; Doppler temperature; Mg; Ramsey-Borde interferometer; high precision spectroscopy; intercombination line; microwave frequency standards; ultracold magnesium atoms; Atom lasers; Cooling; Land surface temperature; Laser stability; Magnesium; Microwave frequencies; Optimized production technology; Signal resolution; Spectroscopy; Stationary state;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2003. EQEC '03. European

Print_ISBN

0-7803-7733-8

Type

conf

DOI

10.1109/EQEC.2003.1314161

Filename

1314161