Abstract
Using transient differential transmission measurements we probe directly the temporal evolution of band-gap renormalization of a photoexcited modulation-doped quantum-well system. The band-gap renormalization is shown to increase while the carriers cool down towards the lattice temperature. The experimental results for the band-gap renormalization are in qualitative agreement with calculations made using the random-phase approximation.
Original language | English (US) |
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Pages (from-to) | R17013-R17016 |
Journal | Physical Review B |
Volume | 52 |
Issue number | 24 |
DOIs | |
State | Published - 1995 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics