Abstract
We report the relative coherence lifetimes for the biexciton polarization and the exciton polarization following ultrafast resonant excitation in ZnSe/(Zn,Cd)Se multiple quantum wells. The excitonic and biexcitonic nature of the observed third-order polarization is demonstrated by selection rules and comparison with a theoretical treatment. We show the polarization coherence lifetimes to be related by a factor of two (T2X = 2T2B) and discuss the origin of this relationship.
Original language | English |
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Pages (from-to) | 820-824 |
Number of pages | 5 |
Journal | Semiconductor Science and Technology |
Volume | 12 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 1997 |