Stimulated Raman adiabatic passage via bright state in Λ medium of unequal oscillator strengths

G. G. Grigoryan*, C. Leroy, Y. Pashayan-Leroy, L. Chakhmakhchyan, S. Guérin, H. R. Jauslin

*Corresponding author for this work

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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 languageEnglish
Article number256
JournalEuropean Physical Journal D
Volume66
Issue number10
DOIs
Publication statusPublished - 1 Oct 2012

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    Grigoryan, G. G., Leroy, C., Pashayan-Leroy, Y., Chakhmakhchyan, L., Guérin, S., & Jauslin, H. R. (2012). Stimulated Raman adiabatic passage via bright state in Λ medium of unequal oscillator strengths. European Physical Journal D, 66(10), [256]. https://doi.org/10.1140/epjd/e2012-30216-0