Laser-cooled Rb clock

C. Fertig, J. Bouttier, K. Gibble

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


We demonstrate a prototype of a laser-cooled 87Rb fountain clock and measure the frequency shift due to cold collisions. The shift is fractionally 30 times smaller than that in a laser-cooled Cs clock. We observe a density dependent pulling by the microwave cavity and use it to cancel the collision shift. We have also demonstrated a juggling atomic fountain to study cold collisions and we discuss the importance of juggling for future fountain clocks.

Original languageEnglish (US)
Pages (from-to)680-686
Number of pages7
JournalProceedings of the Annual IEEE International Frequency Control Symposium
StatePublished - 2000
Event2000 IEEE 54th Annual Frequency Control Symposium - Kansas, MO, United States
Duration: Jun 7 2000Jun 9 2000

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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