Spin-selective optical absorption of singly charged excitons in a quantum dot

Alexander Högele, Martin Kroner, Stefan Seidl, Khaled Karrai, Mete Atatüre, Jan Dreiser, Atac Imamoǧlu, Richard J. Warburton, Antonio Badolato, Brian D. Gerardot, Pierre M. Petroff

Research output: Contribution to journalArticle

Abstract

We report high resolution laser absorption spectroscopy of a single InGaAsGaAs self-assembled quantum dot embedded in a field-effect structure. We show experimentally that the interband optical absorption to the lower Zeeman branch of the singly charged exciton is strongly inhibited due to spin (Pauli) blockade of the optical transition. At high magnetic fields the optical absorption to the upper Zeeman branch dominates the absorption spectrum. We find, however, that the spin blockade is not complete and a 10% leakage remains at high magnetic fields. Applying a gate voltage to empty the dot of its resident electron turns the spin blockade off. This effect is observed at 1.5 K and up to 9 T. © 2005 American Institute of Physics.

Original languageEnglish
Article number221905
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number22
DOIs
Publication statusPublished - 30 May 2005

Fingerprint

optical absorption
quantum dots
excitons
laser spectroscopy
optical transition
magnetic fields
absorption spectroscopy
leakage
absorption spectra
physics
high resolution
electric potential
electrons

Cite this

Högele, A., Kroner, M., Seidl, S., Karrai, K., Atatüre, M., Dreiser, J., ... Petroff, P. M. (2005). Spin-selective optical absorption of singly charged excitons in a quantum dot. Applied Physics Letters, 86(22), 1-3. [221905]. https://doi.org/10.1063/1.1940733
Högele, Alexander ; Kroner, Martin ; Seidl, Stefan ; Karrai, Khaled ; Atatüre, Mete ; Dreiser, Jan ; Imamoǧlu, Atac ; Warburton, Richard J. ; Badolato, Antonio ; Gerardot, Brian D. ; Petroff, Pierre M. / Spin-selective optical absorption of singly charged excitons in a quantum dot. In: Applied Physics Letters. 2005 ; Vol. 86, No. 22. pp. 1-3.
@article{2799faa9579a41b2baf464889b89fd0d,
title = "Spin-selective optical absorption of singly charged excitons in a quantum dot",
abstract = "We report high resolution laser absorption spectroscopy of a single InGaAsGaAs self-assembled quantum dot embedded in a field-effect structure. We show experimentally that the interband optical absorption to the lower Zeeman branch of the singly charged exciton is strongly inhibited due to spin (Pauli) blockade of the optical transition. At high magnetic fields the optical absorption to the upper Zeeman branch dominates the absorption spectrum. We find, however, that the spin blockade is not complete and a 10{\%} leakage remains at high magnetic fields. Applying a gate voltage to empty the dot of its resident electron turns the spin blockade off. This effect is observed at 1.5 K and up to 9 T. {\circledC} 2005 American Institute of Physics.",
author = "Alexander H{\"o}gele and Martin Kroner and Stefan Seidl and Khaled Karrai and Mete Atat{\"u}re and Jan Dreiser and Atac Imamoǧlu and Warburton, {Richard J.} and Antonio Badolato and Gerardot, {Brian D.} and Petroff, {Pierre M.}",
year = "2005",
month = "5",
day = "30",
doi = "10.1063/1.1940733",
language = "English",
volume = "86",
pages = "1--3",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "22",

}

Högele, A, Kroner, M, Seidl, S, Karrai, K, Atatüre, M, Dreiser, J, Imamoǧlu, A, Warburton, RJ, Badolato, A, Gerardot, BD & Petroff, PM 2005, 'Spin-selective optical absorption of singly charged excitons in a quantum dot', Applied Physics Letters, vol. 86, no. 22, 221905, pp. 1-3. https://doi.org/10.1063/1.1940733

Spin-selective optical absorption of singly charged excitons in a quantum dot. / Högele, Alexander; Kroner, Martin; Seidl, Stefan; Karrai, Khaled; Atatüre, Mete; Dreiser, Jan; Imamoǧlu, Atac; Warburton, Richard J.; Badolato, Antonio; Gerardot, Brian D.; Petroff, Pierre M.

In: Applied Physics Letters, Vol. 86, No. 22, 221905, 30.05.2005, p. 1-3.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Spin-selective optical absorption of singly charged excitons in a quantum dot

AU - Högele, Alexander

AU - Kroner, Martin

AU - Seidl, Stefan

AU - Karrai, Khaled

AU - Atatüre, Mete

AU - Dreiser, Jan

AU - Imamoǧlu, Atac

AU - Warburton, Richard J.

AU - Badolato, Antonio

AU - Gerardot, Brian D.

AU - Petroff, Pierre M.

PY - 2005/5/30

Y1 - 2005/5/30

N2 - We report high resolution laser absorption spectroscopy of a single InGaAsGaAs self-assembled quantum dot embedded in a field-effect structure. We show experimentally that the interband optical absorption to the lower Zeeman branch of the singly charged exciton is strongly inhibited due to spin (Pauli) blockade of the optical transition. At high magnetic fields the optical absorption to the upper Zeeman branch dominates the absorption spectrum. We find, however, that the spin blockade is not complete and a 10% leakage remains at high magnetic fields. Applying a gate voltage to empty the dot of its resident electron turns the spin blockade off. This effect is observed at 1.5 K and up to 9 T. © 2005 American Institute of Physics.

AB - We report high resolution laser absorption spectroscopy of a single InGaAsGaAs self-assembled quantum dot embedded in a field-effect structure. We show experimentally that the interband optical absorption to the lower Zeeman branch of the singly charged exciton is strongly inhibited due to spin (Pauli) blockade of the optical transition. At high magnetic fields the optical absorption to the upper Zeeman branch dominates the absorption spectrum. We find, however, that the spin blockade is not complete and a 10% leakage remains at high magnetic fields. Applying a gate voltage to empty the dot of its resident electron turns the spin blockade off. This effect is observed at 1.5 K and up to 9 T. © 2005 American Institute of Physics.

UR - http://www.scopus.com/inward/record.url?scp=20844455413&partnerID=8YFLogxK

U2 - 10.1063/1.1940733

DO - 10.1063/1.1940733

M3 - Article

VL - 86

SP - 1

EP - 3

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 22

M1 - 221905

ER -

Högele A, Kroner M, Seidl S, Karrai K, Atatüre M, Dreiser J et al. Spin-selective optical absorption of singly charged excitons in a quantum dot. Applied Physics Letters. 2005 May 30;86(22):1-3. 221905. https://doi.org/10.1063/1.1940733