Abstract
We study the induced absorption due to biexciton formation in absorption bleaching pump-probe signals and the quantum beats between exciton and biexciton in the four-wave-mixing signals. The origin is confirmed by the polarization dependence of the signals in both experiments. The definite discrimination between exciton-biexciton quantum beats and the others by the polarization choices is demonstrated clearly. We also show the well-width dependence of the biexciton binding energy that is determined by the period of the quantum beats in the range of well width 45-150 Å of GaAs/(Formula presented)(Formula presented)As (x=0.3-1.0) multiple quantum wells.
| Original language | English |
|---|---|
| Pages (from-to) | 1654-1660 |
| Number of pages | 7 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 55 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1997 Jan 1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Adachi, S., Miyashita, T., Takeyama, S., Takagi, Y., & Tackeuchi, A. (1997). Polarization choices in exciton-biexciton system of GaAs quantum wells. Physical Review B - Condensed Matter and Materials Physics, 55(3), 1654-1660. https://doi.org/10.1103/PhysRevB.55.1654