Abstract
Optical gain spectra are computed for quantum dots under high excitation conditions, where there is a non-negligible two-dimensional carrier density surrounding the dots. Using a screened Hartree-Fock theory to describe the influence of the Coulomb interaction, we find different self-energy shifts for the dot and quantum-well transitions. Furthermore, in contrast to the result for quantum-well and bulk systems, the peak gain at the quantum-dot transition computed including Coulomb effects is reduced from its free carrier value.
| Original language | English (US) |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 11 |
| DOIs | |
| State | Published - Jan 1 2001 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Cite this
Schneider, H. C., Chow, W. W., & Koch, S. W. (2001). Many-body effects in the gain spectra of highly excited quantum-dot lasers. Physical Review B - Condensed Matter and Materials Physics, 64(11). https://doi.org/10.1103/PhysRevB.64.115315