Abstract
Coulomb correlation between excitons created by co-circular polarization, σ−/σ−, have been extensively investigated.1,2 Here we compare Four-Wave Mixing (FWM) experiments performed with linear polarization both parallel (||) and perpendicular (1). In this case excitons, (X), of both spin are generated, bound biexcitons, (X2) can be generated, but exciton- exchange is not active in the (⊥)-configuration whereas the full Coulomb correlation acts in the (║)-configuration.
© 1999 Optical Society of America
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