Abstract
One of the basic problems of many-body physics is to establish links between fundamental dynamical processes in microscopic many-body systems with macroscopically observable signals. An important example is that of coherent exciton-exciton interaction in semiconductors excited with subpicosecond high-intensity light pulses. Based on a theoretical study, a new method for the investigation and identification of ultrafast exciton-exciton interactions in uniaxially strained zincblende quantum wells is proposed in this contribution: time-resolved nonlinear differential polarimetry (transmission ellipsometry). Beyond the specific example of uniaxially strained GaAs quantum wells, which have been realized only recently,1 future extensions of the method may include naturally anisotropic semiconductors (e.g., those with hexagonal lattice structures).
© 1997 Optical Society of America
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