期刊
出版社
IEEE
关键词
atomic clock; Ramsey interrogation; pulsed optical pumping; double resonance; Rubidium; microfabrication; vapor cell
The study presents experimental results on double-resonance Ramsey spectroscopy in a micro fabricated Rb vapor cell, showing high stability performance and potential support for future improved 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 > 5 % are observed, resulting in a clock short-term stability of approximate to 1x10(-11) tau(-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.
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