Effects of Field-Correlation on Raman-Enhanced Nondegenerate Four-Wave Mixing Spectra

The effects of field correlation on Raman-enhanced nondegenerate four-wave mixing (REN-FWM) have been investigated by examining the RENFWM spectra as a function of time delay between two beams. An enhancement of the ratio between the resonant and nonresonant REN-FWM signal intensities was found as the time delay was increased when the laser had broadband linewidth.