Title
Phonon-induced features in optical spectra of quantum dots : breakdown of the adiabatic approximation Phonon-induced features in optical spectra of quantum dots : breakdown of the adiabatic approximation
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
Singapore :World Scientific, [*]
Subject
Physics
Source (book)
4th International Conference on Excitonic Processes in Condensed Matter, (EXCON2000), Aug. 22-25, 2000, Osaka City Univ.V, Osaka Japan
ISBN
981-02-4588-2
ISI
000229424700003
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
A theory of photoluminescence and Raman scattering in semiconductor quantum dots is developed, which relies on two key ingredients. First, it takes into account non-adiabaticity of the exciton-phonon system. Second, it includes a multimode dielectric model of LO-phonons and of the electron-phonon interaction in confined systems. Our approach is applied to calculate the optical spectra of several quanturn-dot structures: ensembles of spherical CdSe, CdSexS1-x and PbS quantum dots, self-assembled InAs/GaAs and CdSe/ZnSe quantum dots, brick-shaped InAs/GaAs quantum dots created by local anodic oxidation using the atomic force microscope.
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