Abstract
Exciton interactions in ZnSe-based thin layers and quantum wells have been studied using ultrafast four-wave-mixing. We present results to show the influence of quantum confinement on the exciton - acoustic-phonon scattering rate, and compare the coherence lifetimes of excitons and biexcitons. Using a thin ZnSe layer, we reveal a new signature of quantum beating, namely polarisation-state beating, which in turn reveals the role of excitation-induced dephasing in exciton interactions.
| Original language | English |
|---|---|
| Pages (from-to) | 192-196 |
| Number of pages | 5 |
| Journal | Proceedings of SPIE - the International Society for Optical Engineering |
| Volume | 3729 |
| Publication status | Published - 1999 |
| Event | Proceedings of the 1998 International Conference on Optics and Optoelectronics - Silver Jubilee Symposium of the Optical Society of India - Dehradum, India Duration: 9 Dec 1998 → 12 Dec 1998 |