Purcell-enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators

Łukasz Dusanowski; Dominik Köck; Eunso Shin; Soon-Hong Kwon; Christian Schneider; Sven Höfling

doi:10.1021/acs.nanolett.0c01771

Purcell-enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators

Łukasz Dusanowski, Dominik Köck, Eunso Shin, Soon-Hong Kwon, Christian Schneider, Sven Höfling

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Abstract

Integrated photonic circuits provide a versatile toolbox of functionalities for advanced quantum optics applications. Here, we demonstrate an essential component of such a system in the form of a Purcell-enhanced single-photon source based on a quantum dot coupled to a robust on-chip integrated resonator. For that, we develop GaAs monolithic ring cavities based on distributed Bragg reflector ridge waveguides. Under resonant excitation conditions, we observe an over 2-fold spontaneous emission rate enhancement using Purcell effect and gain a full coherent optical control of a QD-two-level system via Rabi oscillations. Furthermore, we demonstrate an on-demand single-photon generation with strongly suppressed multiphoton emission probability as low as 1% and two-photon interference with visibility up to 95%. This integrated single-photon source can be readily scaled up, promising a realistic pathway for scalable on-chip linear optical quantum simulation, quantum computation, and quantum networks.

Original language	English
Pages (from-to)	6357–6363
Number of pages	7
Journal	Nano Letters
Volume	20
Issue number	9
Early online date	24 Jul 2020
DOIs	https://doi.org/10.1021/acs.nanolett.0c01771
Publication status	E-pub ahead of print - 24 Jul 2020

Keywords

Quantum dot
Single-photon source
Integrated photonics
Ring resonator
Purcell
Two-photon interference

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Copyright © 2020 American Chemical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1021/acs.nanolett.0c01771
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Cite this

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title = "Purcell-enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators",

abstract = "Integrated photonic circuits provide a versatile toolbox of functionalities for advanced quantum optics applications. Here, we demonstrate an essential component of such a system in the form of a Purcell-enhanced single-photon source based on a quantum dot coupled to a robust on-chip integrated resonator. For that, we develop GaAs monolithic ring cavities based on distributed Bragg reflector ridge waveguides. Under resonant excitation conditions, we observe an over 2-fold spontaneous emission rate enhancement using Purcell effect and gain a full coherent optical control of a QD-two-level system via Rabi oscillations. Furthermore, we demonstrate an on-demand single-photon generation with strongly suppressed multiphoton emission probability as low as 1% and two-photon interference with visibility up to 95%. This integrated single-photon source can be readily scaled up, promising a realistic pathway for scalable on-chip linear optical quantum simulation, quantum computation, and quantum networks.",

keywords = "Quantum dot, Single-photon source, Integrated photonics, Ring resonator, Purcell, Two-photon interference",

author = "{\L}ukasz Dusanowski and Dominik K{\"o}ck and Eunso Shin and Soon-Hong Kwon and Christian Schneider and Sven H{\"o}fling",

note = "Funding: {\L}.D.acknowledges the financial support from the Alexander von Humboldt Foundation. S.-H. K. acknowledges the financial support from the National Research Foundation of Korea through the Korean Government Grant NRF-2019R1A2C4069587. We are furthermore grateful for the support by the State of Bavaria.",

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doi = "10.1021/acs.nanolett.0c01771",

language = "English",

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pages = "6357–6363",

journal = "Nano Letters",

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TY - JOUR

T1 - Purcell-enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators

AU - Dusanowski, Łukasz

AU - Köck, Dominik

AU - Shin, Eunso

AU - Kwon, Soon-Hong

AU - Schneider, Christian

AU - Höfling, Sven

N1 - Funding: Ł.D.acknowledges the financial support from the Alexander von Humboldt Foundation. S.-H. K. acknowledges the financial support from the National Research Foundation of Korea through the Korean Government Grant NRF-2019R1A2C4069587. We are furthermore grateful for the support by the State of Bavaria.

PY - 2020/7/24

Y1 - 2020/7/24

N2 - Integrated photonic circuits provide a versatile toolbox of functionalities for advanced quantum optics applications. Here, we demonstrate an essential component of such a system in the form of a Purcell-enhanced single-photon source based on a quantum dot coupled to a robust on-chip integrated resonator. For that, we develop GaAs monolithic ring cavities based on distributed Bragg reflector ridge waveguides. Under resonant excitation conditions, we observe an over 2-fold spontaneous emission rate enhancement using Purcell effect and gain a full coherent optical control of a QD-two-level system via Rabi oscillations. Furthermore, we demonstrate an on-demand single-photon generation with strongly suppressed multiphoton emission probability as low as 1% and two-photon interference with visibility up to 95%. This integrated single-photon source can be readily scaled up, promising a realistic pathway for scalable on-chip linear optical quantum simulation, quantum computation, and quantum networks.

AB - Integrated photonic circuits provide a versatile toolbox of functionalities for advanced quantum optics applications. Here, we demonstrate an essential component of such a system in the form of a Purcell-enhanced single-photon source based on a quantum dot coupled to a robust on-chip integrated resonator. For that, we develop GaAs monolithic ring cavities based on distributed Bragg reflector ridge waveguides. Under resonant excitation conditions, we observe an over 2-fold spontaneous emission rate enhancement using Purcell effect and gain a full coherent optical control of a QD-two-level system via Rabi oscillations. Furthermore, we demonstrate an on-demand single-photon generation with strongly suppressed multiphoton emission probability as low as 1% and two-photon interference with visibility up to 95%. This integrated single-photon source can be readily scaled up, promising a realistic pathway for scalable on-chip linear optical quantum simulation, quantum computation, and quantum networks.

KW - Quantum dot

KW - Single-photon source

KW - Integrated photonics

KW - Ring resonator

KW - Purcell

KW - Two-photon interference

U2 - 10.1021/acs.nanolett.0c01771

DO - 10.1021/acs.nanolett.0c01771

M3 - Article

SN - 1530-6984

VL - 20

SP - 6357

EP - 6363

JO - Nano Letters

JF - Nano Letters

IS - 9

ER -

Purcell-enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators

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Keywords

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