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Blockade-induced resonant enhancement of the optical nonlinearity in a Rydberg medium

We predict a resonant enhancement of the nonlinear optical response of an interacting Rydberg gas under conditions of electromagnetically induced transparency. The enhancement originates from a two-photon process which resonantly couples electronic states of a pair of atoms dressed by a strong contr...

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Main Authors: Tebben, Annika (Author) , Hainaut, Clément (Author) , Walther, Valentin (Author) , Zhang, Yong-Chang (Author) , Zürn, Gerhard (Author) , Pohl, Thomas (Author) , Weidemüller, Matthias (Author)
Format: Article (Journal)
Language:English
Published: 6 December 2019
In: Physical review
Year: 2019, Volume: 100, Issue: 6
ISSN:2469-9934
DOI:10.1103/PhysRevA.100.063812
Online Access:Verlag, Volltext: https://doi.org/10.1103/PhysRevA.100.063812
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.100.063812
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Author Notes:Annika Tebben, Clément Hainaut, Valentin Walther, Yong-Chang Zhang, Gerhard Zürn, Thomas Pohl, and Matthias Weidemüller
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Summary:We predict a resonant enhancement of the nonlinear optical response of an interacting Rydberg gas under conditions of electromagnetically induced transparency. The enhancement originates from a two-photon process which resonantly couples electronic states of a pair of atoms dressed by a strong control field. We calculate the optical response for the three-level system by explicitly including the dynamics of the intermediate state. We find an analytical expression for the third-order susceptibility for a weak classical probe field. The nonlinear absorption displays the strongest resonant behavior on two-photon resonance where the detuning of the probe field equals the Rabi frequency of the control field. The nonlinear dispersion of the medium exhibits various spatial shapes depending on the interaction strength. Based on the developed model, we propose a realistic experimental scenario to observe the resonance by performing transmission measurements.
Item Description:Gesehen am 15.01.2020
Physical Description:Online Resource
ISSN:2469-9934
DOI:10.1103/PhysRevA.100.063812

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