Abstract
We examine the features of degenerate four-wave-mixing (DFWM) spectra of semiconductor microcavities in the weak and intermediate coupling regime. By tuning the exciton energy utilizing quantum-confined Stark effect, the exciton-microcavity detuning is systematically controlled. In intermediate coupling regime, the enhancement of nonlinear signal does not coincide with the normal mode resonances observed in linear reflection spectrum. With these results, the criteria for strong coupling regime are discussed.
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