---
_id: '63508'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>Tailored nanoscale quantum light
    sources, matching the specific needs of use cases, are crucial building blocks
    for photonic quantum technologies. Several different approaches to realize solid-state
    quantum emitters with high performance have been pursued and different concepts
    for energy tuning have been established. However, the properties of the emitted
    photons are always defined by the individual quantum emitter and can therefore
    not be controlled with full flexibility. Here we introduce an all-optical nonlinear
    method to tailor and control the single photon emission. We demonstrate a laser-controlled
    down-conversion process from an excited state of a semiconductor quantum three-level
    system. Based on this concept, we realize energy tuning and polarization control
    of the single photon emission with a control-laser field. Our results mark an
    important step towards tailored single photon emission from a photonic quantum
    system based on quantum optical principles.</jats:p>
article_number: '1387'
author:
- first_name: B.
  full_name: Jonas, B.
  last_name: Jonas
- first_name: D.
  full_name: Heinze, D.
  last_name: Heinze
- first_name: E.
  full_name: Schöll, E.
  last_name: Schöll
- first_name: P.
  full_name: Kallert, P.
  last_name: Kallert
- first_name: T.
  full_name: Langer, T.
  last_name: Langer
- first_name: S.
  full_name: Krehs, S.
  last_name: Krehs
- first_name: A.
  full_name: Widhalm, A.
  last_name: Widhalm
- first_name: K. D.
  full_name: Jöns, K. D.
  last_name: Jöns
- first_name: D.
  full_name: Reuter, D.
  last_name: Reuter
- first_name: S.
  full_name: Schumacher, S.
  last_name: Schumacher
- first_name: A.
  full_name: Zrenner, A.
  last_name: Zrenner
citation:
  ama: Jonas B, Heinze D, Schöll E, et al. Nonlinear down-conversion in a single quantum
    dot. <i>Nature Communications</i>. 2022;13(1). doi:<a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>
  apa: Jonas, B., Heinze, D., Schöll, E., Kallert, P., Langer, T., Krehs, S., Widhalm,
    A., Jöns, K. D., Reuter, D., Schumacher, S., &#38; Zrenner, A. (2022). Nonlinear
    down-conversion in a single quantum dot. <i>Nature Communications</i>, <i>13</i>(1),
    Article 1387. <a href="https://doi.org/10.1038/s41467-022-28993-3">https://doi.org/10.1038/s41467-022-28993-3</a>
  bibtex: '@article{Jonas_Heinze_Schöll_Kallert_Langer_Krehs_Widhalm_Jöns_Reuter_Schumacher_et
    al._2022, title={Nonlinear down-conversion in a single quantum dot}, volume={13},
    DOI={<a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>},
    number={11387}, journal={Nature Communications}, publisher={Springer Science and
    Business Media LLC}, author={Jonas, B. and Heinze, D. and Schöll, E. and Kallert,
    P. and Langer, T. and Krehs, S. and Widhalm, A. and Jöns, K. D. and Reuter, D.
    and Schumacher, S. and et al.}, year={2022} }'
  chicago: Jonas, B., D. Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs, A. Widhalm,
    et al. “Nonlinear Down-Conversion in a Single Quantum Dot.” <i>Nature Communications</i>
    13, no. 1 (2022). <a href="https://doi.org/10.1038/s41467-022-28993-3">https://doi.org/10.1038/s41467-022-28993-3</a>.
  ieee: 'B. Jonas <i>et al.</i>, “Nonlinear down-conversion in a single quantum dot,”
    <i>Nature Communications</i>, vol. 13, no. 1, Art. no. 1387, 2022, doi: <a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>.'
  mla: Jonas, B., et al. “Nonlinear Down-Conversion in a Single Quantum Dot.” <i>Nature
    Communications</i>, vol. 13, no. 1, 1387, Springer Science and Business Media
    LLC, 2022, doi:<a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>.
  short: B. Jonas, D. Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs, A. Widhalm,
    K.D. Jöns, D. Reuter, S. Schumacher, A. Zrenner, Nature Communications 13 (2022).
date_created: 2026-01-06T13:51:50Z
date_updated: 2026-04-24T14:07:26Z
department:
- _id: '15'
doi: 10.1038/s41467-022-28993-3
intvolume: '        13'
issue: '1'
language:
- iso: eng
project:
- _id: '55'
  name: TRR 142 - Project Area B
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Nonlinear down-conversion in a single quantum dot
type: journal_article
user_id: '72332'
volume: 13
year: '2022'
...