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) |
|---|---|
| Article number | 115315 |
| Pages (from-to) | 1153151-1153157 |
| Number of pages | 7 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 11 |
| Publication status | Published - Sep 15 2001 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
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), 1153151-1153157. [115315].