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

Technical Report · Mon Apr 21 04:00:00 EDT 1997

DOI:https://doi.org/10.2172/486170· OSTI ID:486170

Girndt, A; Jahnke, F; Knorr, A; Koch, S W ^[1]; Chow, W W ^[2]

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1. Phillips-Univ., Marburg (Germany). Fachbereich Physik und Zentrum fuer Materialwissenschaften
2. Sandia National Labs., Albuquerque, NM (United States)

Quasi-equilibrium 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 {center_dot} p theory makes it possible to investigate various II-VI material combinations. Numerical results are presented for CdZnSe/ZnSe and CdZnSe/MnZnSSe semiconductor quantum-well systems.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Financial Management and Controller, Washington, DC (United States); Department of Defense, Washington, DC (United States); Deutsche Forschungsgemeinschaft, Bonn (Germany)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 486170
• Report Number(s): SAND--97-0694C; CONF-970384--1; ON: DE97007428; CNN: Grant AFOSR 49620-97-1-0002
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BAND THEORY
BLOCH EQUATIONS
CADMIUM SELENIDES
HETEROJUNCTIONS
MAGNESIUM COMPOUNDS
OPTICAL PROPERTIES
SEMICONDUCTOR MATERIALS
THEORETICAL DATA
ZINC SELENIDES