Title :
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
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;
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
