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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F18%3APU136037" target="_blank" >RIV/00216305:26620/18:PU136037 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41467-018-05499-5" target="_blank" >https://www.nature.com/articles/s41467-018-05499-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41467-018-05499-5" target="_blank" >10.1038/s41467-018-05499-5</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10700 - Other natural sciences

Project

<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NATURE COMMUNICATIONS

ISSN

2041-1723

e-ISSN

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Volume of the periodical

9

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

1-8

UT code for WoS article

000440652500010

EID of the result in the Scopus database

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