Microscopic Theory for the Optical Properties of Coulomb-Correlated Semiconductors

PEREIRA, Mauro and HENNEBERGER, K. (1998). Microscopic Theory for the Optical Properties of Coulomb-Correlated Semiconductors. physica status solidi b, 206 (1), 477-491.

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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. Bethe-Salpeter-like equations are given for the optical response and recombination rates in the excited medium. Band structure; 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 III-V and II-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.

Item Type:	Article
Identification Number:	https://doi.org/10.1002/(SICI)1521-3951(199803)206:1<477::AID-PSSB477>3.0.CO;2-5
Page Range:	477-491
Depositing User:	Helen Garner
Date Deposited:	18 Nov 2014 16:01
Last Modified:	18 Mar 2021 19:15
URI:	https://shura.shu.ac.uk/id/eprint/8802

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