Lifetimes and Quantum Efficiencies of Quantum Dots Deterministically Positioned in Photonic-Crystal Waveguides

Xiao-Liu Chu; Tommaso Pregnolato; Ruediger Schott; Andreas D. Wieck; Arne Ludwig; Nir Rotenberg; Peter Lodahl

doi:10.1002/qute.202000026

Lifetimes and Quantum Efficiencies of Quantum Dots Deterministically Positioned in Photonic-Crystal Waveguides

Xiao-Liu Chu^*, Tommaso Pregnolato, Ruediger Schott, Andreas D. Wieck, Arne Ludwig, Nir Rotenberg, Peter Lodahl

^*Corresponding author for this work

Quantop

Research output: Contribution to journal › Journal article › Research › peer-review

4 Citations (Scopus)

32 Downloads (Pure)

Abstract

Interfacing single emitters and photonic nanostructures enables modifying their emission properties, such as enhancing individual decay rates or controlling the emission direction. To achieve full control, the single emitter must be positioned in the nanostructures deterministically. Here, spectroscopy is used to gain spectral and spatial information about individual quantum dots (QD) in order to position each emitter in a predetermined location in a unit cell of a photonic-crystal waveguide (PhCW). Depending on the spatial and spectral positioning within the structured nanophotonic mode, the quantum dot emission is observed to either be suppressed or enhanced. These results represent an important step towards unlocking the full potential of nanophotonic systems and will be crucial to the creation of complex multi-emitter quantum photonic circuits.

Original language	English
Article number	2000026
Journal	Advanced Quantum Technologies
Volume	3
Issue number	11
Number of pages	7
ISSN	2511-9044
DOIs	https://doi.org/10.1002/qute.202000026
Publication status	Published - 1 Nov 2020

Bibliographical note

HyQ

Keywords

nanofabrication
quantum dots
quantum nanophotonics
single-photon sources
SLOW-LIGHT
EMISSION
EMITTER

Access to Document

10.1002/qute.202000026

article-aqt_revised_manuscript_finalv2Accepted author manuscript, 1.88 MB

https://arxiv.org/abs/1909.08943Licence: CC BY-NC

Cite this

Lifetimes and Quantum Efficiencies of Quantum Dots Deterministically Positioned in Photonic-Crystal Waveguides. / Chu, Xiao-Liu; Pregnolato, Tommaso; Schott, Ruediger; Wieck, Andreas D.; Ludwig, Arne; Rotenberg, Nir; Lodahl, Peter.

In: Advanced Quantum Technologies, Vol. 3, No. 11, 2000026, 01.11.2020.

Research output: Contribution to journal › Journal article › Research › peer-review

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AU - Wieck, Andreas D.

AU - Ludwig, Arne

AU - Rotenberg, Nir

AU - Lodahl, Peter

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AB - Interfacing single emitters and photonic nanostructures enables modifying their emission properties, such as enhancing individual decay rates or controlling the emission direction. To achieve full control, the single emitter must be positioned in the nanostructures deterministically. Here, spectroscopy is used to gain spectral and spatial information about individual quantum dots (QD) in order to position each emitter in a predetermined location in a unit cell of a photonic-crystal waveguide (PhCW). Depending on the spatial and spectral positioning within the structured nanophotonic mode, the quantum dot emission is observed to either be suppressed or enhanced. These results represent an important step towards unlocking the full potential of nanophotonic systems and will be crucial to the creation of complex multi-emitter quantum photonic circuits.

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