Ultrafast hole dynamics in Si0.5Ge0.5/Si multiple quantum wells is studied with resonant excitation of the HH1 → HH2 heavy-hole intersubband transition. Pump-probe experiments with 150-fs mid-infrared pulses demonstrate intersubband scattering and thermalization on a subpicosecond timescale.
|Original language||English (US)|
|Number of pages||3|
|Journal||Springer Series in Chemical Physics|
|State||Published - 2001|
ASJC Scopus subject areas
- Physical and Theoretical Chemistry