Fundamental studies of degenerate four -wave mixing in a two-level atomic system

M. Pinard, B. Kleinmann, G. Grynberg

Richard C. Lind, Duncan G. Steel, Juan Francisco Lam +2 more

M. S. K. Razmi, Joseph H. Eberly

Abstract Using degenerate four-wave mixing squeezing is studied in pumped three-level atomic systems. It is found that better squeezing obtains with a three-level system than with a two-level one.

A. Lezama, George C. Cardoso, J. W. R. Tabosa

Nearly degenerate four-wave mixing (NDFWM) within a closed degenerate two-level atomic transition is theoretically and experimentally examined. Using the model presented by Lezama et al. [Phys. Rev. A 61, 013801 (2000)] the NDFWM spectra corresponding to different pump and probe polarization cases are calculated and discussed. The calculated spectra are compared to the observation of NDFWM within the ${6S}_{1/2}(F=4)\ensuremath{\rightarrow}{6P}_{3/2}(F=5)$ transition of cesium in a phase conjugation experiment using magneto-optically cooled atoms.

Ross A. McFarlane, Juan Francisco Lam, Richard C. Lind +1 more

Ka-Di Zhu

The nonlinear absorption and reflection spectra of a degenerate four-wave mixing (DFWM) in a dense collection of two-level atoms embedded in a linear dielectric medium are investigated theoretically in terms of the slowly varying envelope approximation and the undepleted pump approximation. The numerical results show that the linear dielectric host is beneficial to the DFWM reflection spectra of a dense two-level atom system embedded in a linear dielectric medium.