Ramsey Spectroscopy in a Micro-Fabricated Rb Vapor Cell for Miniature Atomic Clocks

We present a prospective experimental study on double-resonance Ramsey spectroscopy in a micro fabricated Rb vapor cell, in view of future miniature atomic clocks with improved stability performance. Ramsey signals with a narrow central fringe width of 1.5 kHz combined with a competitive contrast of...

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Bibliographic Details
Main Authors: Batori, E., Affolderbach, C., Pellaton, M., Grnet, F., Mileti, G., Su, Y., Violetti, M., Skrivervik, A. K.
Format: Conference Proceeding
Language:English
Subjects:
Atom optics
atomic clock
double resonance
Europe
microfabrication
Optical device fabrication
Optical variables control
pulsed optical pumping
Ramsey interrogation
Resonant frequency
Rubidium
Spectroscopy
Time-frequency analysis
vapor cell
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Summary:We present a prospective experimental study on double-resonance Ramsey spectroscopy in a micro fabricated Rb vapor cell, in view of future miniature atomic clocks with improved stability performance. Ramsey signals with a narrow central fringe width of 1.5 kHz combined with a competitive contrast of > 5 % are observed, resulting in a clock short-term stability of ≈ 1×10 -11 τ −1/2 . The employed pulsed optical pumping (POP) scheme bears promise for reduced light-shift effects and thus for improved clock stability on medium- to long-term timescales.
ISSN:2327-1949
DOI:10.1109/EFTF/IFCS52194.2021.9604252