Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System

Magdalena Moczała-Dusanowska, Łukasz Dusanowski, Stefan Gerhardt, Yu Ming He, Marcus Reindl, Armando Rastelli, Rinaldo Trotta, Niels Gregersen, Sven Höfling, Christian Schneider

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Scalable quantum photonic architectures demand highly efficient, high-purity single-photon sources, which can be frequency matched via external tuning. We demonstrate a single-photon source based on an InAs quantum dot embedded in a micropillar resonator, which is frequency tunable via externally applied stress. Our platform combines the advantages of a micropillar cavity and the piezo-strain-tuning technique enabling single-photon spontaneous emission enhancement via the Purcell effect and wavelength-tunable quantum dots (QDs). Our optomechanical platform has been implemented by integration of semiconductor-based QD–micropillars on a piezoelectric substrate. The fabricated device exhibits spontaneous emission enhancement with a Purcell factor of 4.4 ± 0.7 and allows for a pure triggered single-photon generation with g(2)(0) <0.07 under resonant excitation. A quantum dot emission energy tuning range of 0.75 meV for 27 kV/cm applied to the piezosubstrate has been achieved. Our results pave the way toward the scalable implementation of single-photon quantum photonic technologies using optoelectronic devices.
Original languageEnglish
JournalACS Photonics
Volume6
Pages (from-to)2025−2031
ISSN2330-4022
DOIs
Publication statusPublished - 2019

Keywords

  • Semiconductor quantum dots
  • Micropillar cavity
  • Strain tuning
  • Single-photon source
  • Resonance fluorescence

Cite this

Moczała-Dusanowska, M., Dusanowski, Ł., Gerhardt, S., He, Y. M., Reindl, M., Rastelli, A., ... Schneider, C. (2019). Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System. ACS Photonics, 6, 2025−2031. https://doi.org/10.1021/acsphotonics.9b00481
Moczała-Dusanowska, Magdalena ; Dusanowski, Łukasz ; Gerhardt, Stefan ; He, Yu Ming ; Reindl, Marcus ; Rastelli, Armando ; Trotta, Rinaldo ; Gregersen, Niels ; Höfling, Sven ; Schneider, Christian. / Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System. In: ACS Photonics. 2019 ; Vol. 6. pp. 2025−2031.
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title = "Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System",
abstract = "Scalable quantum photonic architectures demand highly efficient, high-purity single-photon sources, which can be frequency matched via external tuning. We demonstrate a single-photon source based on an InAs quantum dot embedded in a micropillar resonator, which is frequency tunable via externally applied stress. Our platform combines the advantages of a micropillar cavity and the piezo-strain-tuning technique enabling single-photon spontaneous emission enhancement via the Purcell effect and wavelength-tunable quantum dots (QDs). Our optomechanical platform has been implemented by integration of semiconductor-based QD–micropillars on a piezoelectric substrate. The fabricated device exhibits spontaneous emission enhancement with a Purcell factor of 4.4 ± 0.7 and allows for a pure triggered single-photon generation with g(2)(0) <0.07 under resonant excitation. A quantum dot emission energy tuning range of 0.75 meV for 27 kV/cm applied to the piezosubstrate has been achieved. Our results pave the way toward the scalable implementation of single-photon quantum photonic technologies using optoelectronic devices.",
keywords = "Semiconductor quantum dots, Micropillar cavity, Strain tuning, Single-photon source, Resonance fluorescence",
author = "Magdalena Moczała-Dusanowska and Łukasz Dusanowski and Stefan Gerhardt and He, {Yu Ming} and Marcus Reindl and Armando Rastelli and Rinaldo Trotta and Niels Gregersen and Sven Höfling and Christian Schneider",
year = "2019",
doi = "10.1021/acsphotonics.9b00481",
language = "English",
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pages = "2025−2031",
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Moczała-Dusanowska, M, Dusanowski, Ł, Gerhardt, S, He, YM, Reindl, M, Rastelli, A, Trotta, R, Gregersen, N, Höfling, S & Schneider, C 2019, 'Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System', ACS Photonics, vol. 6, pp. 2025−2031. https://doi.org/10.1021/acsphotonics.9b00481

Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System. / Moczała-Dusanowska, Magdalena; Dusanowski, Łukasz; Gerhardt, Stefan; He, Yu Ming; Reindl, Marcus; Rastelli, Armando; Trotta, Rinaldo; Gregersen, Niels; Höfling, Sven; Schneider, Christian.

In: ACS Photonics, Vol. 6, 2019, p. 2025−2031.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System

AU - Moczała-Dusanowska, Magdalena

AU - Dusanowski, Łukasz

AU - Gerhardt, Stefan

AU - He, Yu Ming

AU - Reindl, Marcus

AU - Rastelli, Armando

AU - Trotta, Rinaldo

AU - Gregersen, Niels

AU - Höfling, Sven

AU - Schneider, Christian

PY - 2019

Y1 - 2019

N2 - Scalable quantum photonic architectures demand highly efficient, high-purity single-photon sources, which can be frequency matched via external tuning. We demonstrate a single-photon source based on an InAs quantum dot embedded in a micropillar resonator, which is frequency tunable via externally applied stress. Our platform combines the advantages of a micropillar cavity and the piezo-strain-tuning technique enabling single-photon spontaneous emission enhancement via the Purcell effect and wavelength-tunable quantum dots (QDs). Our optomechanical platform has been implemented by integration of semiconductor-based QD–micropillars on a piezoelectric substrate. The fabricated device exhibits spontaneous emission enhancement with a Purcell factor of 4.4 ± 0.7 and allows for a pure triggered single-photon generation with g(2)(0) <0.07 under resonant excitation. A quantum dot emission energy tuning range of 0.75 meV for 27 kV/cm applied to the piezosubstrate has been achieved. Our results pave the way toward the scalable implementation of single-photon quantum photonic technologies using optoelectronic devices.

AB - Scalable quantum photonic architectures demand highly efficient, high-purity single-photon sources, which can be frequency matched via external tuning. We demonstrate a single-photon source based on an InAs quantum dot embedded in a micropillar resonator, which is frequency tunable via externally applied stress. Our platform combines the advantages of a micropillar cavity and the piezo-strain-tuning technique enabling single-photon spontaneous emission enhancement via the Purcell effect and wavelength-tunable quantum dots (QDs). Our optomechanical platform has been implemented by integration of semiconductor-based QD–micropillars on a piezoelectric substrate. The fabricated device exhibits spontaneous emission enhancement with a Purcell factor of 4.4 ± 0.7 and allows for a pure triggered single-photon generation with g(2)(0) <0.07 under resonant excitation. A quantum dot emission energy tuning range of 0.75 meV for 27 kV/cm applied to the piezosubstrate has been achieved. Our results pave the way toward the scalable implementation of single-photon quantum photonic technologies using optoelectronic devices.

KW - Semiconductor quantum dots

KW - Micropillar cavity

KW - Strain tuning

KW - Single-photon source

KW - Resonance fluorescence

U2 - 10.1021/acsphotonics.9b00481

DO - 10.1021/acsphotonics.9b00481

M3 - Journal article

VL - 6

SP - 2025−2031

JO - A C S Photonics

JF - A C S Photonics

SN - 2330-4022

ER -

Moczała-Dusanowska M, Dusanowski Ł, Gerhardt S, He YM, Reindl M, Rastelli A et al. Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System. ACS Photonics. 2019;6:2025−2031. https://doi.org/10.1021/acsphotonics.9b00481