Stimulated scattering and its dynamics in semiconductor microcavities at 80 K under nonresonant excitation conditions

Abstract : We have observed stimulated scattering in a II-VI microcavity at 80 K under nonresonant excitation conditions. This stimulated scattering manifests itself through probe amplification in a pump-probe reflectivity experiment and through a highly nonlinear emission at an energy corresponding to a k? ? 0 state on the lower polariton branch. We were able to follow the onset and decline of stimulated scattering by measuring the temporal evolution of the probe amplification.
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Antigoni Alexandrou, G. Bianchi, Emmanuel Peronne, B. Hallé, F. Boeuf, et al.. Stimulated scattering and its dynamics in semiconductor microcavities at 80 K under nonresonant excitation conditions. Physical Review B : Condensed matter and materials physics, American Physical Society, 2001, 64 (23), pp.2333181. ⟨10.1103/PhysRevB.64.233318⟩. ⟨hal-00837037⟩

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