Title :
Laser-cooled Rb clocks and juggling atomic fountains
Author_Institution :
Yale Univ., New Haven, CT, USA
Abstract :
Summary form only given. We juggle atoms in an atomic fountain by launching 2 balls of laser-cooled Cs atoms in rapid succession. The 2 balls collide near the top of the fountain and we detect the scattered atoms by measuring the changes in the atoms vertical velocity. Measuring the distribution of the velocity component along the collision axis gives the differential cross section. We scan the collision energy E/sub c/ by varying the time delay between launches and get the differential cross sections as a function of energy.
Keywords :
atom-atom collisions; atomic clocks; frequency standards; laser cooling; rubidium; Rb; balls of laser-cooled Cs; cold collisions; collision energy; differential cross section; frequency shift; high short-term stability; juggling atomic fountains; laser-cooled Rb clocks; optimal juggling rates; p-wave scattering; s-wave cross-section; scattered atoms; time delay between launches; vertical velocity changes; Atom lasers; Atomic beams; Atomic clocks; Atomic measurements; Frequency; Laser theory; Power capacitors; Probes; Scattering; Velocity measurement;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807358
