Abstract
We have performed spectrally resolved four-wave mixing measurements on inhomogeneously broadened GaAs/AlAs quantum-well structures. Under crosslinear polarization we observed a beating structure as a function of the delay time at higher energy region of the emission band with period of 0.95 ps. The beating was constructive at delaytime τ = 0 ps. This behavior results from the interference between two biexciton intermediate states with different energies coupled to a common one-exciton state, as we show by a comparison with analytical model calculation of the double Feynman diagrams of the same type.
| Original language | English |
|---|---|
| Pages (from-to) | 2349-2353 |
| Number of pages | 5 |
| Journal | journal of the physical society of japan |
| Volume | 69 |
| Issue number | 7 |
| Publication status | Published - 2000 Jul 1 |
| Externally published | Yes |
Keywords
- Biexciton
- Double Feynman diagram
- Exciton
- FWM
- GaAs
- Nonlinear optics
- Quantum wells
ASJC Scopus subject areas
- Physics and Astronomy(all)