Preliminary results on an optically-pumped Cs beam frequency standard

Details Preliminary results on an optically-pumped Cs beam frequency standard Preliminary results on an optically-pumped Cs beam frequency standard

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.340...77a&link_type=abstract

In ESA, Frequency and Time Forum p 77-81 (SEE N93-24978 09-70)

Physics

Atomic Beams, Cesium, Frequency Shift, Frequency Stability, Frequency Standards, Microwave Power Beaming, Optical Pumping, Atomic Clocks, Doppler Effect, Frequency Measurement, Systems Engineering, Temporal Distribution, Velocity Distribution

Scientific paper

A laboratory, optically pumped Cs-beam frequency standard is described. The measured short term stability is sigma y(tau) - 2.2 x 10(exp -12)/tau(exp -1/2) for tau greater than 100 s. The velocity distribution in the atomic beam is verified to be Maxwellian weighted by 1/nu as expected. The main frequency shifts were estimated. There is an unexpected power dependent frequency shift which needs further experiments to be explained.

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