Effects of a lateral electric field on excitons in a single quantum dot

W. Heller; U. Bockelmann; G. Abstreiter

doi:10.1016/S1386-9477(98)00127-1

Effects of a lateral electric field on excitons in a single quantum dot

W. Heller, U. Bockelmann, G. Abstreiter

TUM Emeriti of Excellence

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We investigate single quantum dots formed by monolayer width fluctuations of a quantum well in a lateral external electric field. The ground state and several excited states are discussed. We find a red shift of the lines when the field is raised which is explained in terms of the Stark effect. The line width of the ground state broadens with increasing field due to lateral tunneling out of the dot. We observe a reduced Stark shift when the dot is populated by several excitons.

Original language	English
Pages (from-to)	623-626
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	2
Issue number	1-4
DOIs	https://doi.org/10.1016/S1386-9477(98)00127-1
State	Published - 15 Jul 1998

Keywords

Electric field
Quantum dot
Stark effect

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abstract = "We investigate single quantum dots formed by monolayer width fluctuations of a quantum well in a lateral external electric field. The ground state and several excited states are discussed. We find a red shift of the lines when the field is raised which is explained in terms of the Stark effect. The line width of the ground state broadens with increasing field due to lateral tunneling out of the dot. We observe a reduced Stark shift when the dot is populated by several excitons.",

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AU - Abstreiter, G.

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N2 - We investigate single quantum dots formed by monolayer width fluctuations of a quantum well in a lateral external electric field. The ground state and several excited states are discussed. We find a red shift of the lines when the field is raised which is explained in terms of the Stark effect. The line width of the ground state broadens with increasing field due to lateral tunneling out of the dot. We observe a reduced Stark shift when the dot is populated by several excitons.

AB - We investigate single quantum dots formed by monolayer width fluctuations of a quantum well in a lateral external electric field. The ground state and several excited states are discussed. We find a red shift of the lines when the field is raised which is explained in terms of the Stark effect. The line width of the ground state broadens with increasing field due to lateral tunneling out of the dot. We observe a reduced Stark shift when the dot is populated by several excitons.

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KW - Quantum dot

KW - Stark effect

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ER -

Effects of a lateral electric field on excitons in a single quantum dot

Abstract

Keywords

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