Microscopic theory of optical gain in small semiconductor quantum dots

Y. Hu, H. Giesen, N. Peyghambarian, S. Koch

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


A microscopic theory is used to analyze optical gain in small semiconductor quantum dots. Based on a numerical matrix diagonalization method and subsequent solution of the optical Bloch equations, it is found that the quantum-dot gain is dominated by the stimulated transitions between biexciton and exciton states. The calculation shows that Coulomb interaction and valence-band mixing effects significantly influence the spectral and dynamic gain properties in strongly confined quantum dots.

Original languageEnglish (US)
Pages (from-to)4814-4822
Number of pages9
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
StatePublished - 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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