Faculté des sciences

Study of laser-pumped double-resonance clock signals using a microfabricated cell

Pellaton, Matthieu ; Affolderbach, Christoph ; Pétremand, Yves ; de Rooij, Nicolaas F. ; Mileti, Gaetano

In: Physica Scripta, 2012, vol. T149, p. 014013 (4pp)

We present our microwave spectroscopic studies on laser–microwave double-resonance (DR) signals obtained from a micro-fabricated Rb vapor cell. This study focuses on the characteristics and systematic shifts of the ground-state 'clock transition' in 87Rb (|Fg = 1, mF = 0⟩ → | Fg = 2, mF = 0⟩) used in Rb... Plus

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    Summary
    We present our microwave spectroscopic studies on laser–microwave double-resonance (DR) signals obtained from a micro-fabricated Rb vapor cell. This study focuses on the characteristics and systematic shifts of the ground-state 'clock transition' in 87Rb (|Fg = 1, mF = 0⟩ → | Fg = 2, mF = 0⟩) used in Rb atomic clocks, and represents a first step toward a miniature atomic clock based on the DR scheme. A short-term clock instability below 2 × 1011τ−1/2 is demonstrated, staying below 10−11 up to τ= 104 s.