Propagation of coupled dark-state polaritons and storage of light in a tripod medium

Abstract

We consider the slow light propagation in an atomic medium with a tripod level scheme. We show that the coexistence of two types of dark-state polaritons leads to the propagation dynamics, which is qualitatively different from that in a $\Lambda$-medium, and allows therefore for very efficient conversion of signal photons into spin excitations. This efficiency is shown to be very close to 1 even for very long signal light pulses, which could not be entirely compressed into a Lambda-medium at a comparable strength of the control field.

arXiv comment7 pages, 3 eps figures, final version published in Phys. Rev. A

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Cited by in corpus (4)

• Double-EIT Ground-State Cooling of Stationary Two-Dimensional Ion Lattices
• Electromagnetically induced transparency and nonlinear pulse propagation in a combined tripod and $\Lambda$ atom-light coupling scheme
• Analogue of double-$\Lambda$-type atomic medium and vector dromions in a plasmonic metamaterial
• Dark state with counter-rotating dissipative channels