High-contrast dark resonance on the D2 - line of 87Rb in a vapor cell with different directions of the pump - probe waves

Details High-contrast dark resonance on the D2 - line of 87Rb in a vapor cell with different directions of the pump - probe waves High-contrast dark resonance on the D2 - line of 87Rb in a vapor cell with different directions of the pump - probe waves

2005-03-31

arxiv.org/abs/physics/0503246v2

Physics

Optics

7 pages, 4 figures

Scientific paper

10.1140/epjd/e2005-00213-7

We propose a novel method enabling to create a high-contrast dark resonance in the 87Rb vapor D2-line. The method is based on an optical pumping of atoms into the working states by a two-frequency, linearly-polarized laser radiation propagating perpendicularly to the probe field. This new scheme is compared to the traditional scheme involving the circularly-polarized probe beam only, and significant improvement of the dark resonance parameters is found. Qualitative considerations are confirmed by numerical calculations.

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