Theory of vertical and lateral Stark shifts of excitons in quantum dots

M. Sabathil; S. Hackenbuchner; S. Birner; J. A. Majewski; P. Vogl; J. J. Finley

doi:10.1002/pssc.200303034

Theory of vertical and lateral Stark shifts of excitons in quantum dots

M. Sabathil, S. Hackenbuchner, S. Birner, J. A. Majewski, P. Vogl, J. J. Finley

Walter Schottky Institut

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

We present charge self-consistent 8-band κ · p calculations of the quantum confined Stark shift of excitons for self-assembled buried InGaAs quantum dots. Many different shapes and alloy profiles of the dots have been systematically studied. We predict the Stark shift of excitons for simultaneously applied vertical and lateral electric fields, taking into account realistic alloy profiles in the quantum dot. The study of the Stark shift of neutral excitons and in both vertical and lateral electric field directions provides a wealth of information about the coupling of the exciton to external perturbations. We show that the combination of lateral and vertical electric fields provides a particularly sensitive probe of the dot shape and alloy composition.

Original language	English
Pages (from-to)	1181-1184
Number of pages	4
Journal	Physica Status Solidi C: Conferences
Issue number	4
DOIs	https://doi.org/10.1002/pssc.200303034
State	Published - 2003
Event	2nd International Conference on Semiconductor Quantum Dots, QD 2002 - Tokyo, Japan Duration: 30 Sep 2002 → 3 Oct 2002

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title = "Theory of vertical and lateral Stark shifts of excitons in quantum dots",

abstract = "We present charge self-consistent 8-band κ · p calculations of the quantum confined Stark shift of excitons for self-assembled buried InGaAs quantum dots. Many different shapes and alloy profiles of the dots have been systematically studied. We predict the Stark shift of excitons for simultaneously applied vertical and lateral electric fields, taking into account realistic alloy profiles in the quantum dot. The study of the Stark shift of neutral excitons and in both vertical and lateral electric field directions provides a wealth of information about the coupling of the exciton to external perturbations. We show that the combination of lateral and vertical electric fields provides a particularly sensitive probe of the dot shape and alloy composition.",

author = "M. Sabathil and S. Hackenbuchner and S. Birner and Majewski, {J. A.} and P. Vogl and Finley, {J. J.}",

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doi = "10.1002/pssc.200303034",

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note = "2nd International Conference on Semiconductor Quantum Dots, QD 2002 ; Conference date: 30-09-2002 Through 03-10-2002",

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T1 - Theory of vertical and lateral Stark shifts of excitons in quantum dots

AU - Sabathil, M.

AU - Hackenbuchner, S.

AU - Birner, S.

AU - Majewski, J. A.

AU - Vogl, P.

AU - Finley, J. J.

PY - 2003

Y1 - 2003

N2 - We present charge self-consistent 8-band κ · p calculations of the quantum confined Stark shift of excitons for self-assembled buried InGaAs quantum dots. Many different shapes and alloy profiles of the dots have been systematically studied. We predict the Stark shift of excitons for simultaneously applied vertical and lateral electric fields, taking into account realistic alloy profiles in the quantum dot. The study of the Stark shift of neutral excitons and in both vertical and lateral electric field directions provides a wealth of information about the coupling of the exciton to external perturbations. We show that the combination of lateral and vertical electric fields provides a particularly sensitive probe of the dot shape and alloy composition.

AB - We present charge self-consistent 8-band κ · p calculations of the quantum confined Stark shift of excitons for self-assembled buried InGaAs quantum dots. Many different shapes and alloy profiles of the dots have been systematically studied. We predict the Stark shift of excitons for simultaneously applied vertical and lateral electric fields, taking into account realistic alloy profiles in the quantum dot. The study of the Stark shift of neutral excitons and in both vertical and lateral electric field directions provides a wealth of information about the coupling of the exciton to external perturbations. We show that the combination of lateral and vertical electric fields provides a particularly sensitive probe of the dot shape and alloy composition.

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U2 - 10.1002/pssc.200303034

DO - 10.1002/pssc.200303034

M3 - Conference article

AN - SCOPUS:33645276092

SN - 1610-1634

SP - 1181

EP - 1184

JO - Physica Status Solidi C: Conferences

JF - Physica Status Solidi C: Conferences

IS - 4

T2 - 2nd International Conference on Semiconductor Quantum Dots, QD 2002

Y2 - 30 September 2002 through 3 October 2002

ER -

Theory of vertical and lateral Stark shifts of excitons in quantum dots

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