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1992
Journal Article
Titel
Quantum beats of excitons in quantum wells
Alternative
Quantenoszillationen von Exzitonen in Quantentrögen
Abstract
We review our observations of quantum beats of excitons in quantum wells arising from (i) heavy hole-light hole splitting, (ii) exciton splitting due to fluctuations in the well-width of quantum wells, and (iii) free and bound excitons, using the techniques of time resolved four-wave-mixing (FWM) and pump-and-probe (PP). We also discuss quantum beats in appropriately biased asymmetric double quantum wells, representing the first observation of coherent oscillations of an electronic wavepacket in a solid, and report on the observation of unusual polarization dependence in the FWM experiments.
Author(s)