We present a detailed study of the excitonic nonlinearities in InGaAs/GaAs multiple quantum wells based on both stationary and transient pump-and-probe transmission spectroscopy. Bleaching of the excitonic resonance and free carrier gain have been observed. A quantitative analysis of the observed nonlinearity is provided by means of a rigorous solution of the Bethe-Salpeter equation for the investigated heterostructures

Non linear absorption and gain in InGaAs/GaAs quantum wells

DI TRAPANI, PAOLO;ANDREONI, ALESSANDRA
1997

Abstract

We present a detailed study of the excitonic nonlinearities in InGaAs/GaAs multiple quantum wells based on both stationary and transient pump-and-probe transmission spectroscopy. Bleaching of the excitonic resonance and free carrier gain have been observed. A quantitative analysis of the observed nonlinearity is provided by means of a rigorous solution of the Bethe-Salpeter equation for the investigated heterostructures
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11383/14039
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