Two-photon spectroscopy with a modelocked laser in doughnut mode laser-cooled Rb

Author

Snadden, M.J. ; Bell, A.S. ; Clarke, R.B.M. ; Riis, E. ; McIntyre, Douglas

Author_Institution

Dept. of Phys. & Appl. Phys., Strathclyde Univ., Glasgow, UK

fYear

1996

fDate

7-7 June 1996

Firstpage

16

Lastpage

17

Abstract

Reports on an experiment in which a modelocked titanium sapphire laser was used to excite a number of two-photon transitions in a sample of laser-cooled Rb atoms within a magnetooptical trap (MOT). Although the laser has a total bandwidth of /spl sim/300 GHz, corresponding to its /spl sim/1 ps pulse duration, we have been able to observe linewidths approaching the natural linewidth. This is due to the fact that the observed signal is the coherent sum of the interactions of a large number of individual pulses.

Keywords

cooling; magneto-optical effects; radiation pressure; rubidium; spectral line breadth; two-photon spectra; two-photon spectroscopy; 1 ps; 300 GHz; Rb; coherent sum; doughnut mode laser-cooled Rb; individual pulses; interactions; laser-cooled Rb atoms; linewidths; magnetooptical trap; modelocked Ti:sapphire laser; pulse duration; total bandwidth; two-photon spectroscopy; two-photon transitions; Atom lasers; Atom optics; Atomic beams; Frequency; Laser beams; Laser mode locking; Laser modes; Laser theory; Laser transitions; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-444-0

Type

conf

Filename

865509