Near-field magneto-optics of quantum dots

Encouraged by the latest experimental developments as well as by the theoretical interest on the near-field (NF) optics of semiconductor quantum dots (QDs), we present our most recent theoretical results on the NF optical absorption and photoluminescence (PL) of single and coupled III-V QDs subjecte...

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Bibliographic Details
Main Authors: Zora, Anna, Simserides, Constantinos, Triberis, Georgios
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:Encouraged by the latest experimental developments as well as by the theoretical interest on the near-field (NF) optics of semiconductor quantum dots (QDs), we present our most recent theoretical results on the NF optical absorption and photoluminescence (PL) of single and coupled III-V QDs subjected additionally to an external magnetic field of variable orientation and magnitude. The zero-magnetic-field 'structural' QD symmetry can be destroyed varying the magnetic field orientation. The asymmetry induced by the magnetic field -except for specific orientations along symmetry axes- can be uncovered in the near-field but not in the far-field spectra. Hence, we predict that NF magnetoabsorption experiments, of realistic spatial resolution, will be in the position to bring to light the QD symmetry.
ISSN:0094-243X
DOI:10.1063/1.2730179