Microscopic theory for the optical properties of Coulomb-correlated semiconductors

Mauro Fernandes Pereira Jr.; Klaus Henneberger

doi:10.1117/12.316660

7 July 1998 Microscopic theory for the optical properties of Coulomb-correlated semiconductors

Mauro Fernandes Pereira Jr., Klaus Henneberger

Proceedings Volume 3283, Physics and Simulation of Optoelectronic Devices VI; (1998) https://doi.org/10.1117/12.316660
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

A nonequilibrium Green's functions approach is presented for the consistent computation of semiconductor quantum well optical spectra including strong Coulomb correlations within the coupled photon and carrier system. BetheSalpeter-like equations are given for the optical response and recombination rates in the excited medium. Bandstructure, quantum-confinement, many-body and cavity resonator effects are included in the microscopic approach. The theory is applied to the description of absorption/gain, luminescence, single and two-beam photoluminescence excitation spectroscopy for arbitrary temperatures and carrier densities. Numerical results, showing good agreement with recent experiments, are presented for ITT-V and Il-VI materials, from the linear regime, characterized by excitonic effects to the high density case in which a strongly interacting electron-hole plasma is proposed as the dominant mechanism. Keywords: Many-Body Effects; T-matrix; Bethe-Salpeter Equation; Nonlinear Absorption; Strongly-Correlated Electron-Hole Plasma; Coupled Valence-Band Multiple Quantum Wells.

Citation Download Citation

Mauro Fernandes Pereira Jr. and Klaus Henneberger "Microscopic theory for the optical properties of Coulomb-correlated semiconductors", Proc. SPIE 3283, Physics and Simulation of Optoelectronic Devices VI, (7 July 1998); https://doi.org/10.1117/12.316660

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KEYWORDS

Quantum wells

Absorption

Polarization

Luminescence

Semiconductors

Plasma

Solids

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