Publication detail

Uniaxial stress flips the natural quantization axis of a quantum dot for integrated quantum photonics

Yuan, XY. Weyhausen-Brinkmann, F. Martin-Sanchez, J. Piredda, G. Krapek, V. Huo, YH. Huang, HY. Schimpf, C. Schmidt, OG. Edlinger, J. Bester, G. Trotta, R. Rastelli, A

Original Title

Uniaxial stress flips the natural quantization axis of a quantum dot for integrated quantum photonics

Type

journal article in Web of Science

Language

English

Original Abstract

The optical selection rules in epitaxial quantum dots are strongly influenced by the orientation of their natural quantization axis, which is usually parallel to the growth direction. This configuration is well suited for vertically emitting devices, but not for planar photonic circuits because of the poorly controlled orientation of the transition dipoles in the growth plane. Here we show that the quantization axis of gallium arsenide dots can be flipped into the growth plane via moderate in-plane uniaxial stress. By using piezoelectric strain-actuators featuring strain amplification, we study the evolution of the selection rules and excitonic fine structure in a regime, in which quantum confinement can be regarded as a perturbation compared to strain in determining the symmetry-properties of the system. The experimental and computational results suggest that uniaxial stress may be the right tool to obtain quantum-light sources with ideally oriented transition dipoles and enhanced oscillator strengths for integrated quantum photonics.

Keywords

FINE-STRUCTURE; SOLID-STATE; ELECTRONIC-STRUCTURE; EXCITON; NANOSTRUCTURES; EMISSION; CIRCUITS; EMITTERS; DEVICE

Authors

Yuan, XY.; Weyhausen-Brinkmann, F.; Martin-Sanchez, J.; Piredda, G.; Krapek, V.; Huo, YH.; Huang, HY.; Schimpf, C. ; Schmidt, OG.; Edlinger, J.; Bester, G.; Trotta, R.; Rastelli, A

Released

3. 8. 2018

Publisher

NATURE PUBLISHING GROUP

Location

LONDON

ISBN

2041-1723

Periodical

NATURE COMMUNICATIONS

Year of study

9

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://www.nature.com/articles/s41467-018-05499-5

BibTex

@article{BUT163370,
  author="Yuan, XY. and Weyhausen-Brinkmann, F. and Martin-Sanchez, J. and Piredda, G. and Krapek, V. and Huo, YH. and Huang, HY. and Schimpf, C. and Schmidt, OG. and Edlinger, J. and Bester, G. and Trotta, R. and Rastelli, A",
  title="Uniaxial stress flips the natural quantization axis of a quantum dot for integrated quantum photonics",
  journal="NATURE COMMUNICATIONS",
  year="2018",
  volume="9",
  number="1",
  pages="1--8",
  doi="10.1038/s41467-018-05499-5",
  issn="2041-1723",
  url="https://www.nature.com/articles/s41467-018-05499-5"
}