Efficient control of coulomb enhanced second harmonic generation from excitonic transitions in quantum dot ensembles

In this work, the second harmonic generation from excitonic transitions in semiconductor quantum dots is computationally studied. By integrating a density matrix treatment with a partial configuration interaction approach, we obtain the second order susceptibility as a function of externally applied...

Full description

Saved in:
Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2015-10, Vol.17 (37), p.23938-23946
Main Authors: Ramirez, Hanz Y, Florez, Jefferson, Camacho, Angela S
Format: Article
Language:English
Subjects:
Coulomb friction
Density
Excitation
Magnetic fields
Optical data processing
Qunatum dots
Second harmonic generation
Semiconductors
Wave functions
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, the second harmonic generation from excitonic transitions in semiconductor quantum dots is computationally studied. By integrating a density matrix treatment with a partial configuration interaction approach, we obtain the second order susceptibility as a function of externally applied electric and magnetic fields for highly confined neutral and charged excitons. Our results show an enhancement in the nonlinear response with respect to analogous optical processes based on intraband transitions, and predict their efficient tunability by taking advantage of the interplay between Coulomb effects and field-driven wave function manipulation.
ISSN:1463-9076
1463-9084
DOI:10.1039/c5cp03349g