Cited by 449Semiconductor Quantum Structures and DevicesNanowire Synthesis and ApplicationsQuantum Dots Synthesis And Properties

Bright single-photon sources in bottom-up tailored nanowires

Open access
Reimer, Michael E., Bulgarini, Gabriele, Akopian, Nika, Hocevar, Moïra, Bavinck, Maaike Bouwes, Verheijen, Marcel A., Bakkers, Erik P.A.M., Kouwenhoven, Leo P. +1 more·2012·Nature Communications

Abstract

The ability to achieve near-unity light-extraction efficiency is necessary for a truly deterministic single-photon source. The most promising method to reach such high efficiencies is based on embedding single-photon emitters in tapered photonic waveguides defined by top-down etching techniques. However, light-extraction efficiencies in current top-down approaches are limited by fabrication imperfections and etching-induced defects. The efficiency is further tempered by randomly positioned off-axis quantum emitters. Here we present perfectly positioned single quantum dots on the axis of a tailored nanowire waveguide using bottom-up growth. In comparison to quantum dots in nanowires without waveguides, we demonstrate a 24-fold enhancement in the single-photon flux, corresponding to a light-extraction efficiency of 42%. Such high efficiencies in one-dimensional nanowires are promising to transfer quantum information over large distances between remote stationary qubits using flying qubits within the same nanowire p–n junction. Single-photon sources are important for quantum optical technologies, although achieving efficient light extraction from them with waveguides is limited in top-down approaches. Reimeret al. show a high extraction efficiency using a bottom-up method to grow quantum dots on the axis of nanowire waveguides.

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Authors
Reimer, M. E., Bulgarini, G., Akopian, N., Hocevar, M., Bavinck, M. B., Verheijen, M. A., Bakkers, E. P. A. M., Kouwenhoven, L. P., & Zwiller, V.
Affiliations
  • Delft University of Technology (NL)
  • Eindhoven University of Technology (NL)
Corresponding author
Reimer, Michael E.
Venue
Nature Communications
Published
2012-03-13
Volume
3
Issue
1
Pages
737-737
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2142401628
Cited by
449
References
32
Citations by year
2026: 12 · 2025: 15 · 2024: 27 · 2023: 22 · 2022: 14 · 2021: 28 · 2020: 43 · 2019: 46 · 2018: 31 · 2017: 35 · 2016: 41 · 2015: 43 · 2014: 32 · 2013: 38 · 2012: 21
FWCI
22.15
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • TU/e Research Portal (submittedVersion)
  • HAL (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion, cc-by-nc-sa)
  • TU/e Research Portal (submittedVersion, other-oa)
  • arXiv (Cornell University)
Funders
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
  • Defense Advanced Research Projects Agency
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
  • Physical Sciences › Engineering › Biomedical Engineering › Nanowire Synthesis and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
Keywords
single-photon sources, quantum dots, nanowire waveguides, light extraction efficiency, tapered waveguide, quantum information transfer, flying qubits, p-n junction

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