Phys. Rev. B 66, 113301 (2002) [4 pages]Experimental determination of intrinsic nonlinearities in semiconductor microcavitiesReceived 25 June 2002; published 3 September 2002 We determine experimentally the intrinsic nonlinearities in semiconductor microcavities in the strong-coupling regime. The polariton coherent dynamics is investigated using four-wave mixing and analyzed by numerical resolution of the coupled Boch-Maxwell equations. Pauli blocking and Coulomb interactions are shown to induce different coherent dynamics and their relative contribution is measured as a function of the carrier density. It is shown in particular that phase-space filling can be the dominant nonlinearity even in the strong-coupling regime. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.66.113301
DOI:
10.1103/PhysRevB.66.113301
PACS:
78.47.+p, 42.65.-k, 71.36.+c, 78.66.Hf
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