Many-body theory for semiconductor microcavity lasers

Frank Jahnke, Stephan W. Koch

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


The influence of many-body, nonequilibrium, and cavity effects on the emission characteristics and carrier dynamics of semiconductor microcavity lasers is investigated. The nonlinear coupled equations for the carrier kinetics and the laser dynamics are derived. Numerical solutions for vertical cavity surface emitting lasers show that the electron-hole plasma population has strong nonequilibrium character under many realistic conditions, exhibiting plasma heating and/or kinetic hole burning. It is shown that the desired threshold reduction through increased spontaneous emission coupling is accompanied by a significant increase in the laser linewidth and deviations from the usual Schawlow-Townes line narrowing. Assuming optical excitation with femtosecond pulses, the delayed onset of laser action and the dynamical emission characteristics are computed.

Original languageEnglish (US)
Pages (from-to)1712-1727
Number of pages16
JournalPhysical Review A
Issue number2
StatePublished - 1995

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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