18 November 2014 Four-photon resonant nondegenerate eight-wave mixing in a dressed atomic system
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We report a four-photon resonant nondegenerate eight-wave mixing (NEWM) in a dresses N-type six-level system. It has advantages that phase match condition is not stringent and NEWM signal is enhanced tremendously due to the multiple resonance with the atomic transition frequencies. In the prenence of a strong coupling field, the four-photon resonant NEWM spectrum exhibits Autler-Townes splitting. Compared to two-photon resonant nondegenerate four-wave mixing and three-photon resonant nondegenerate six-wave mixing in dressed atoms, four-photon resonant NEWM spectrum is more complicated and can provides information about the relaxation of higher-order atomic coherence.
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Jing Gao, Jing Gao, Yu Cui, Yu Cui, Xiaohang Li, Xiaohang Li, Jiang Sun, Jiang Sun, "Four-photon resonant nondegenerate eight-wave mixing in a dressed atomic system", Proc. SPIE 9269, Quantum and Nonlinear Optics III, 92691B (18 November 2014); doi: 10.1117/12.2071377; https://doi.org/10.1117/12.2071377

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