Study of Rb 0-0 hyperfine double-resonance transition in a wall-coated cell

In this paper, we present our studies on double resonance using atomic 87Rb in a wall-coated cell, in view of applications in a laser-pumped Rb atomic frequency standard. We study the systematic clock frequency shifts in a wall-coated cell, such as light shift, microwave power shift [11, 12] and shift due to cell temperature [13] (for the cell body, and for the Rb reservoir, also called the cell stem). We also report on our clock stability measurement using the wallcoated cell in DR scheme, and discuss the influence of the shift parameters first on the frequency stability of the clock.