Statistics of quantum dot exciton fine structure splittings and their polarization orientations

S. Seidl; B. D. Gerardot; P. A. Dalgarno; K. Kowalik; A. W. Holleitner; P. M. Petroff; K. Karrai; R. J. Warburton

doi:10.1016/j.physe.2007.10.046

Statistics of quantum dot exciton fine structure splittings and their polarization orientations

S. Seidl, B. D. Gerardot, P. A. Dalgarno, K. Kowalik, A. W. Holleitner, P. M. Petroff, K. Karrai, R. J. Warburton

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23 Citations (Scopus)

Abstract

The fine structure splitting of neutral excitons in InGaAs quantum dots is investigated using polarization sensitive photoluminescence. The QDs were grown with an in situ annealing step to shift the emission wavelength to ~ 950 nm. Statistics of the fine structure reveal a large spread in magnitude and little preferential orientation of the polarization axis. We speculate that these findings are due to the redistribution of QD material during the annealing step. © 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	2153-2155
Number of pages	3
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	40
Issue number	6
DOIs	https://doi.org/10.1016/j.physe.2007.10.046
Publication status	Published - Apr 2008

Keywords

Fine structure
Isotropic dipole orientation
Quantum dots

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10.1016/j.physe.2007.10.046

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title = "Statistics of quantum dot exciton fine structure splittings and their polarization orientations",

abstract = "The fine structure splitting of neutral excitons in InGaAs quantum dots is investigated using polarization sensitive photoluminescence. The QDs were grown with an in situ annealing step to shift the emission wavelength to ~ 950 nm. Statistics of the fine structure reveal a large spread in magnitude and little preferential orientation of the polarization axis. We speculate that these findings are due to the redistribution of QD material during the annealing step. {\textcopyright} 2007 Elsevier B.V. All rights reserved.",

keywords = "Fine structure, Isotropic dipole orientation, Quantum dots",

author = "S. Seidl and Gerardot, {B. D.} and Dalgarno, {P. A.} and K. Kowalik and Holleitner, {A. W.} and Petroff, {P. M.} and K. Karrai and Warburton, {R. J.}",

year = "2008",

month = apr,

doi = "10.1016/j.physe.2007.10.046",

language = "English",

volume = "40",

pages = "2153--2155",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

number = "6",

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TY - JOUR

T1 - Statistics of quantum dot exciton fine structure splittings and their polarization orientations

AU - Seidl, S.

AU - Gerardot, B. D.

AU - Dalgarno, P. A.

AU - Kowalik, K.

AU - Holleitner, A. W.

AU - Petroff, P. M.

AU - Karrai, K.

AU - Warburton, R. J.

PY - 2008/4

Y1 - 2008/4

N2 - The fine structure splitting of neutral excitons in InGaAs quantum dots is investigated using polarization sensitive photoluminescence. The QDs were grown with an in situ annealing step to shift the emission wavelength to ~ 950 nm. Statistics of the fine structure reveal a large spread in magnitude and little preferential orientation of the polarization axis. We speculate that these findings are due to the redistribution of QD material during the annealing step. © 2007 Elsevier B.V. All rights reserved.

AB - The fine structure splitting of neutral excitons in InGaAs quantum dots is investigated using polarization sensitive photoluminescence. The QDs were grown with an in situ annealing step to shift the emission wavelength to ~ 950 nm. Statistics of the fine structure reveal a large spread in magnitude and little preferential orientation of the polarization axis. We speculate that these findings are due to the redistribution of QD material during the annealing step. © 2007 Elsevier B.V. All rights reserved.

KW - Fine structure

KW - Isotropic dipole orientation

KW - Quantum dots

U2 - 10.1016/j.physe.2007.10.046

DO - 10.1016/j.physe.2007.10.046

M3 - Article

SN - 1386-9477

VL - 40

SP - 2153

EP - 2155

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 6

ER -

Statistics of quantum dot exciton fine structure splittings and their polarization orientations

Abstract

Keywords

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