Laser-cooled Rb clocks

Chad Fertig, Kurt Gibble

Research output: Contribution to journalConference articlepeer-review


A prototype of an Rb fountain clock is constructed. Rb atoms are collected in vapor cell magnetooptical trap and launched by frequency shift in a propagating laser beams. By increasing the detuning and by gradually reducing the intensity of the laser, the atoms are cooled adiabatically to 1.85 μK in the fountain. The atoms pass through 2 state preparation microwave cavities and then up and down through the clock cavity which is a waveguide coupled high-Q rectangular cavity. The results and the measurements of the cold collision shifts for Rb are presented.

Original languageEnglish (US)
Pages (from-to)132
Number of pages1
JournalCPEM Digest (Conference on Precision Electromagnetic Measurements)
StatePublished - 1998
EventProceedings of the 1998 Conference Precision Electromagnetic Measurements - Washington, DC, USA
Duration: Jul 6 1998Jul 10 1998

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering


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