Repumping ground-state population in a coherently driven atomic resonance

Abstract

We experimentally demonstrate an optical pumping technique to pump a dilute rubidium vapor into the mF = 0 ground states. The technique utilizes selection rules that forbid the excitation of the mF = 0 state by linearly-polarized light. A substantial increase in the transparency contrast of coherent population trapping in the clock transition is demonstrated.

6 pages

References in corpus (4)

• On the unique possibility to increase significantly the contrast of dark resonances on D1 line of ${}^{87}$Rb
• EIT and diffusion of atomic coherence
• Ramsey-like measurement of the decoherence rate between Zeeman sub-levels
• High-contrast dark resonance on the D2 - line of 87Rb in a vapor cell with different directions of the pump - probe waves