Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells

W. D. Rice, J. Kono, S. Zybell, S. Winnerl, J. Bhattacharyya, H. Schneider, M. Helm, B. Ewers, A. Chernikov, M. Koch, S. Chatterjee, Galina Khitrova, H. M. Gibbs, L. Schneebeli, B. Breddermann, M. Kira, Stephan W Koch

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum well sample. Monitoring the excitonic photoluminescence, we observe transient quenching of the 1s exciton emission, which we attribute to the terahertz-induced 1s-to-2p excitation. Simultaneously, a pronounced enhancement of the 2s exciton emission is observed, despite the 1s-to-2s transition being dipole forbidden. A microscopic many-body theory explains the experimental observations as a Coulomb-scattering mixing of the 2s and 2p states, yielding an effective terahertz transition between the 1s and 2s populations.

Original languageEnglish (US)
Article number137404
JournalPhysical Review Letters
Volume110
Issue number13
DOIs
StatePublished - Mar 26 2013

Fingerprint

excitons
quantum wells
interactions
eigenvectors
quenching
dipoles
photoluminescence
augmentation
pulses
scattering
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells. / Rice, W. D.; Kono, J.; Zybell, S.; Winnerl, S.; Bhattacharyya, J.; Schneider, H.; Helm, M.; Ewers, B.; Chernikov, A.; Koch, M.; Chatterjee, S.; Khitrova, Galina; Gibbs, H. M.; Schneebeli, L.; Breddermann, B.; Kira, M.; Koch, Stephan W.

In: Physical Review Letters, Vol. 110, No. 13, 137404, 26.03.2013.

Research output: Contribution to journalArticle

Rice, WD, Kono, J, Zybell, S, Winnerl, S, Bhattacharyya, J, Schneider, H, Helm, M, Ewers, B, Chernikov, A, Koch, M, Chatterjee, S, Khitrova, G, Gibbs, HM, Schneebeli, L, Breddermann, B, Kira, M & Koch, SW 2013, 'Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells', Physical Review Letters, vol. 110, no. 13, 137404. https://doi.org/10.1103/PhysRevLett.110.137404
Rice, W. D. ; Kono, J. ; Zybell, S. ; Winnerl, S. ; Bhattacharyya, J. ; Schneider, H. ; Helm, M. ; Ewers, B. ; Chernikov, A. ; Koch, M. ; Chatterjee, S. ; Khitrova, Galina ; Gibbs, H. M. ; Schneebeli, L. ; Breddermann, B. ; Kira, M. ; Koch, Stephan W. / Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells. In: Physical Review Letters. 2013 ; Vol. 110, No. 13.
@article{8dc3421e137b45528d14395b36879ac3,
title = "Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells",
abstract = "We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum well sample. Monitoring the excitonic photoluminescence, we observe transient quenching of the 1s exciton emission, which we attribute to the terahertz-induced 1s-to-2p excitation. Simultaneously, a pronounced enhancement of the 2s exciton emission is observed, despite the 1s-to-2s transition being dipole forbidden. A microscopic many-body theory explains the experimental observations as a Coulomb-scattering mixing of the 2s and 2p states, yielding an effective terahertz transition between the 1s and 2s populations.",
author = "Rice, {W. D.} and J. Kono and S. Zybell and S. Winnerl and J. Bhattacharyya and H. Schneider and M. Helm and B. Ewers and A. Chernikov and M. Koch and S. Chatterjee and Galina Khitrova and Gibbs, {H. M.} and L. Schneebeli and B. Breddermann and M. Kira and Koch, {Stephan W}",
year = "2013",
month = "3",
day = "26",
doi = "10.1103/PhysRevLett.110.137404",
language = "English (US)",
volume = "110",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",

}

TY - JOUR

T1 - Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells

AU - Rice, W. D.

AU - Kono, J.

AU - Zybell, S.

AU - Winnerl, S.

AU - Bhattacharyya, J.

AU - Schneider, H.

AU - Helm, M.

AU - Ewers, B.

AU - Chernikov, A.

AU - Koch, M.

AU - Chatterjee, S.

AU - Khitrova, Galina

AU - Gibbs, H. M.

AU - Schneebeli, L.

AU - Breddermann, B.

AU - Kira, M.

AU - Koch, Stephan W

PY - 2013/3/26

Y1 - 2013/3/26

N2 - We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum well sample. Monitoring the excitonic photoluminescence, we observe transient quenching of the 1s exciton emission, which we attribute to the terahertz-induced 1s-to-2p excitation. Simultaneously, a pronounced enhancement of the 2s exciton emission is observed, despite the 1s-to-2s transition being dipole forbidden. A microscopic many-body theory explains the experimental observations as a Coulomb-scattering mixing of the 2s and 2p states, yielding an effective terahertz transition between the 1s and 2s populations.

AB - We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum well sample. Monitoring the excitonic photoluminescence, we observe transient quenching of the 1s exciton emission, which we attribute to the terahertz-induced 1s-to-2p excitation. Simultaneously, a pronounced enhancement of the 2s exciton emission is observed, despite the 1s-to-2s transition being dipole forbidden. A microscopic many-body theory explains the experimental observations as a Coulomb-scattering mixing of the 2s and 2p states, yielding an effective terahertz transition between the 1s and 2s populations.

UR - http://www.scopus.com/inward/record.url?scp=84875723214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875723214&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.110.137404

DO - 10.1103/PhysRevLett.110.137404

M3 - Article

VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

M1 - 137404

ER -