Abstract
We report the observation of quantum beats in the decay of the coherent polarization of intrinsic excitations in GaAs/GaAlAs quantum wells. The beating arises from interference of excitons with slightly different quantum confinement energy due to well width fluctuations.
- Received 8 December 1989
DOI:https://doi.org/10.1103/PhysRevLett.64.1801
©1990 American Physical Society