Title :
A juggling Rb fountain clock and a direct measurement of population differences
Author :
Fertig, Chad ; Rees, J. Irjon ; Gibble, Kurt
Author_Institution :
Yale Univ., New Haven, CT, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
We demonstrate a new atomic state detection scheme that directly measures the population difference of the two clock states using FM absorption spectroscopy. We also demonstrate a juggling Rb fountain clock that we will use to study collisions of juggled balls of atoms. Juggling can significantly improve the clocks short-term stability without requiring greater signal-to-noise or a larger cold collision frequency shift
Keywords :
atom-atom collisions; atomic clocks; frequency stability; frequency standards; laser cooling; modulation spectra; radiation pressure; rubidium; Allan variance; FM absorption spectroscopy; Ramsauer-Townsend frequency shift; Rb; atomic state detection scheme; clock states; cold collision frequency shift; collisions of juggled balls; direct population difference measurement; juggling fountain clock; relative stability; short-term stability; Absorption; Atom lasers; Atomic beams; Atomic measurements; Clocks; Frequency; Laser noise; Laser transitions; Pump lasers; Stability;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition, 2001. Proceedings of the 2001 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-7028-7
DOI :
10.1109/FREQ.2001.956153
