Phys. Rev. Lett. 81, 3255–3258 (1998)Coherent Dynamics of Excitonic Nonlinear Optical Response in the Nonperturbative RegimeReceived 24 June 1998; published in the issue dated 12 October 1998 We report experimental and theoretical studies of the transient nonlinear response from semiconductor microcavities. We show that, in the nonperturbative regime, oscillations in time-integrated transient four-wave mixing do not correspond to normal mode oscillations of either the exciton or photon population in the cavity. Coherent nonlinear responses arising from band filling, excitation-induced dephasing, and renormalized electric fields feature highly distinctive dynamical behaviors. Coherent dynamics in transient four-wave mixing reflects interference between these nonlinear processes. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.3255
DOI:
10.1103/PhysRevLett.81.3255
PACS:
78.47.+p, 42.65.Hw, 73.20.Dx
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