Multi-band bloch equations and gain spectra of highly excited II-VI semiconductor quantum wells

A. Girndt, F. Jahnke, A. Knorr, S. w. Koch, W. w. Chow

Research output: Contribution to journalArticle

79 Scopus citations

Abstract

Quasi-equilibrinm excitation dependent optical probe spectra, of II-VI semiconductor quantum wells at room temperature are investigated within the framework of multi-band semiconductor Bloch equations. The calculations include correlation effects beyond the Hartree-Fock level which describe dephasing, interband Coulomb correlations and band-gap renormalization in second Born approximation. In addition to the carrier-Coulomb interaction, the influence of carrier-phonon scattering and inhomogeneous broadening is considered. The explicit calculation of single particle properties like band structure and dipole matrix elements using k · p theory makes it possible to investigate various II-VI material combinations. Numerical results are presented for CdZnSc/ZnSe and CdZnSe/MgZnSSe semiconductor quantum-well systems.

Original languageEnglish (US)
Pages (from-to)725-739
Number of pages15
JournalPhysica Status Solidi (B) Basic Research
Volume202
Issue number2
DOIs
StatePublished - Aug 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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