The third order nonlinear optical response at the heavy-hole (hh) exciton resonance in a wedge-shaped multiple quantum well structure close to the Bragg resonance is investigated using time-integrated and spectrally resolved degenerate four-wave mixing. Effective interwell exciton-exciton interaction due to photon exchange is demonstrates by studying the signals in backward direction for different widths of the barriers.
|Original language||English (US)|
|Number of pages||7|
|Journal||Physica Status Solidi (B) Basic Research|
|State||Published - Mar 1998|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics