Independent tuning of excitonic emission energy and decay time in single semiconductor quantum dots

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Höfer, B.; Zhang, J.; Wildmann, J.; Zallo, E.; Trotta, R. et al.: Independent tuning of excitonic emission energy and decay time in single semiconductor quantum dots. In: Applied Physics Letters 110 (2017), Nr. 15, 151102. DOI: https://doi.org/10.1063/1.4979481

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Sum total of downloads: 181




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Abstract: 
Independent tuning of emission energy and decay time of neutral excitons confined in single self-assembled In(Ga)As/GaAs quantum dots is achieved by simultaneously employing vertical electric fields and lateral biaxial strain fields. By locking the emission energy via a closed-loop feedback on the piezoelectric actuator used to control the strain in the quantum dot, we continuously decrease the decay time of an exciton from 1.4 to 0.7 ns. Both perturbations are fully electrically controlled and their combination offers a promising route to engineer the indistinguishability of photons emitted from spatially separated single photon sources. © 2017 Author(s).
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
total perc.
1 image of flag of Germany Germany 97 53.59%
2 image of flag of United States United States 22 12.15%
3 image of flag of China China 17 9.39%
4 image of flag of Belgium Belgium 11 6.08%
5 image of flag of Russian Federation Russian Federation 10 5.52%
6 image of flag of No geo information available No geo information available 6 3.31%
7 image of flag of France France 4 2.21%
8 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 2 1.10%
9 image of flag of India India 2 1.10%
10 image of flag of Hong Kong Hong Kong 2 1.10%
    other countries 8 4.42%

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