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Journal of Physics B Atomic Molecular and Optical Physics

Intermixing between four-wave mixing and six-wave mixing in a four-level atomic system

Yanpeng Zhang, Andy W. Brown, Chenli Gan, Min Xiao

Published Aug 15, 2007• 10 citations
Publisher

Abstract

We investigate the interplay between six-wave mixing (SWM) and four-wave mixing (FWM) resulting from atomic coherence and polarization beat in a four-level atomic system. The dressed FWM evolution and competition pathways can be controlled by the coupling field to exhibit two FWM and SWM turning points, FWM+SWM, and FWM+FWM interference regions. Quantum interference between two FWM or one FWM and one SWM channels leads to nonlinear signal enhancement and suppression under different conditions. The fifth-order nonlinear response can be obtained by the phase control of the polarization beat between the FWM and SWM signals.

DOI
10.1088/0953-4075/40/17/001

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