Abstract
We report the observation of oscillations with delay time in the time integrated four-wave-mixing signal emitted following sub-picosecond two-beam excitation. The oscillations are shown to originate from exciton-biexciton interference in the photon-echo signal. The results are modelled within the density-operator framework and good agreement is found. The dependence of biexciton binding energy on well width is obtained from the variation in oscillation period. © 1998 Elsevier Science B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 654-661 |
| Number of pages | 8 |
| Journal | Journal of Crystal Growth |
| Volume | 184-185 |
| Publication status | Published - 1998 |
Keywords
- Biexcitons
- Four-wave mixing
- Quantum wells
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Galbraith, I., Blewett, I. J., Tookey, A., Kar, A. K., & Wherrett, B. S. (1998). Coherent exciton-biexciton interaction studied by femtosecond spectroscopy. Journal of Crystal Growth, 184-185, 654-661.