2-PHOTON OPTICAL RAMSEY SPECTROSCOPY OF THE 1S-2S TRANSITION IN ATOMIC-HYDROGEN

Authors
HUBER A GROSS B WEITZ M HANSCH TW
Citation
A. Huber et al., 2-PHOTON OPTICAL RAMSEY SPECTROSCOPY OF THE 1S-2S TRANSITION IN ATOMIC-HYDROGEN, Physical review. A, 58(4), 1998, pp. 2631-2634
Citations number
13
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
58
Issue
4
Year of publication
1998
Pages
2631 - 2634
Database
ISI
SICI code
1050-2947(1998)58:4<2631:2ORSOT>2.0.ZU;2-T
Abstract
We report on the observation of atomic hydrogen 1S-2S Doppler-free two -photon Ramsey spectra using two spatially separated interaction regio ns. We have observed spectra with typical linewidths of 5 kHz at 121 n m, with considerable room for improvements. Our work furthermore repre sents an important step towards a future hydrogen-atom interferometer for a measurement of the fine-structure constant. [S1050-2947(98)50810 -4].