Abstract
We consider the population transfer process in a Λ-type atomic medium of unequal oscillator strengths by stimulated Raman adiabatic passage via bright-state (b-STIRAP) taking into account propagation effects. Using both analytic and numerical methods we show that the population transfer efficiency is sensitive to the ratio q p/q s of the transition oscillator strengths. We find that the case q p > q s is more detrimental for population transfer process as compared to the case where q p ≤ q s. For this case it is possible to increase medium dimensions while permitting efficient population transfer. A criterion determining the interaction adiabaticity in the course of propagation process is found. We also show that the mixing parameter characterizing the population transfer propagates superluminally.
Original language | English |
---|---|
Article number | 256 |
Journal | European Physical Journal D |
Volume | 66 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2012 |