Journal de Physique II

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DOI: 10.1051/jp2:1994240
J. Phys. II France 4 (1994) 1925-1937

Adiabatic transfer in $j \to j$ and $j \to j - 1$ transitions

Constance Valentin, Jin Yu and Pierre Pillet

Laboratoire Aimé Cotton, Bât. 505, C.N.R.S. II, Campus d'Orsay, 91405 Orsay Cedex, France

(Received 19 May 1994, received in final form 2 August 1994, acccepted 8 August 1994)

Abstract
Coherent transfer in multilevel systems by adiabatic passage through a trapped state has experimentally shown very different efficiencies for the two hyperfine components $F = 4 \to F' = 4$ and $F = 4 \to F' = 3$ of the cesium D ₂ line. If an efficiency up to 55 % is observed for $m_F = 4 \to m_F =- 4$ population transfer with the $F = 4 \to F' = 4$ component, it is never better than 25 % for the $F = 4 \to F' = 3$ one. We report here a theoretical interpretation of these experimental results. We show in particular that the $F = 4 \to F' = 3$ transition is much more sensitive to any diffused light, which can destroy totally the trapped state.

Adiabatic transfer in and transitions

Adiabatic transfer in $j \to j$ and $j \to j - 1$ transitions