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Few-Particle Effects in Nonlinear Optical Spectra of Semiconductor Quantum Dots

Published online by Cambridge University Press:  10 February 2011

Ulrich Hohenesteri ,
Fausto Rossi  and
Elisa Molinari
Ulrich Hohenesteri
Affiliation:
Istituto Nazionale per la Fisica della Materia (INFM) E-mail: hohenester@unimo.it; FAX: +39 059 387488 Departimento di Fisica, Università di Modena, Via Campi 213/A, I-41100, Modena, Italy
Fausto Rossi
Affiliation:
Istituto Nazionale per la Fisica della Materia (INFM) Departimento di Fisica, Politecnico di Torino, C. Duca degli Abruzzi 24, I-10129, Torino, Italy
Elisa Molinari
Affiliation:
Istituto Nazionale per la Fisica della Materia (INFM) Departimento di Fisica, Università di Modena, Via Campi 213/A, I-41100, Modena, Italy
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Abstract

We present a density-matrix approach for the description of nonequilibrium carrier dynamics in optically excited semiconductor quantum dots, that explicitly accounts for exciton-exciton as well as exciton-carrier interactions. Within this framework, we analyze few-particle effects in the optical spectra and provide a consistent description of additional peaks appearing at high photoexcitation density. We discuss possible applications of such optical nonlinearities in future coherent-control experiments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 571: Symposium W – Semiconductor Quantum Dots , 1999 , 241
Copyright
Copyright © Materials Research Society 2000

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References

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