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Thomas SE, Wagner L, Joos R, Sittig R, Nawrath C, Burdekin P, de Buy Wenniger IM, Rasiah MJ, Huber-Loyola T, Sagona-Stophel S, Höfling S, Jetter M, Michler P, Walmsley IA, Portalupi SL, Ledingham PM. Deterministic storage and retrieval of telecom light from a quantum dot single-photon source interfaced with an atomic quantum memory. SCIENCE ADVANCES 2024; 10:eadi7346. [PMID: 38608017 PMCID: PMC11014446 DOI: 10.1126/sciadv.adi7346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 03/12/2024] [Indexed: 04/14/2024]
Abstract
A hybrid interface of solid-state single-photon sources and atomic quantum memories is a long sought-after goal in photonic quantum technologies. Here, we demonstrate deterministic storage and retrieval of light from a semiconductor quantum dot in an atomic ensemble quantum memory at telecommunications wavelengths. We store single photons from an indium arsenide quantum dot in a high-bandwidth rubidium vapor-based quantum memory, with a total internal memory efficiency of (12.9 ± 0.4)%. The signal-to-noise ratio of the retrieved light field is 18.2 ± 0.6, limited only by detector dark counts.
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Affiliation(s)
- Sarah E. Thomas
- Department of Physics, Imperial College London, London SW7 2BW, UK
| | - Lukas Wagner
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Raphael Joos
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Robert Sittig
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Cornelius Nawrath
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Paul Burdekin
- Department of Physics, Imperial College London, London SW7 2BW, UK
| | | | | | - Tobias Huber-Loyola
- Julius-Maximilians-Universität Würzburg, Physikalisches Institut and Würzburg-Dresden Cluster of Excellence ct.qmat, Lehrstuhl für Technische Physik, Am Hubland, 97074 Würzburg, Germany
| | | | - Sven Höfling
- Julius-Maximilians-Universität Würzburg, Physikalisches Institut and Würzburg-Dresden Cluster of Excellence ct.qmat, Lehrstuhl für Technische Physik, Am Hubland, 97074 Würzburg, Germany
| | - Michael Jetter
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Peter Michler
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Ian A. Walmsley
- Department of Physics, Imperial College London, London SW7 2BW, UK
| | - Simone L. Portalupi
- Institut für Halbleiteroptik und Funktionelle Grenzflächen (IHFG), Center for Integrated Quantum Science and Technology (IQ) and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
| | - Patrick M. Ledingham
- Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
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Davidson-Marquis F, Gargiulo J, Gómez-López E, Jang B, Kroh T, Müller C, Ziegler M, Maier SA, Kübler H, Schmidt MA, Benson O. Coherent interaction of atoms with a beam of light confined in a light cage. LIGHT, SCIENCE & APPLICATIONS 2021; 10:114. [PMID: 34059619 PMCID: PMC8166889 DOI: 10.1038/s41377-021-00556-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/03/2021] [Accepted: 05/17/2021] [Indexed: 06/01/2023]
Abstract
Controlling coherent interaction between optical fields and quantum systems in scalable, integrated platforms is essential for quantum technologies. Miniaturised, warm alkali-vapour cells integrated with on-chip photonic devices represent an attractive system, in particular for delay or storage of a single-photon quantum state. Hollow-core fibres or planar waveguides are widely used to confine light over long distances enhancing light-matter interaction in atomic-vapour cells. However, they suffer from inefficient filling times, enhanced dephasing for atoms near the surfaces, and limited light-matter overlap. We report here on the observation of modified electromagnetically induced transparency for a non-diffractive beam of light in an on-chip, laterally-accessible hollow-core light cage. Atomic layer deposition of an alumina nanofilm onto the light-cage structure was utilised to precisely tune the high-transmission spectral region of the light-cage mode to the operation wavelength of the atomic transition, while additionally protecting the polymer against the corrosive alkali vapour. The experiments show strong, coherent light-matter coupling over lengths substantially exceeding the Rayleigh range. Additionally, the stable non-degrading performance and extreme versatility of the light cage provide an excellent basis for a manifold of quantum-storage and quantum-nonlinear applications, highlighting it as a compelling candidate for all-on-chip, integrable, low-cost, vapour-based photon delay.
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Affiliation(s)
- Flavie Davidson-Marquis
- Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Julian Gargiulo
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, 80539, Munich, Germany
| | - Esteban Gómez-López
- Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Bumjoon Jang
- Department of Fiber Photonics, Leibniz Institute of Photonic Technology, 07745, Jena, Germany
| | - Tim Kroh
- Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany.
| | - Chris Müller
- Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Mario Ziegler
- Competence Center for Micro- and Nanotechnologies, Leibniz Institute of Photonic Technology Jena, 07745, Jena, Germany
| | - Stefan A Maier
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, 80539, Munich, Germany
- Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - Harald Kübler
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 57, 70569, Stuttgart, Germany
| | - Markus A Schmidt
- Department of Fiber Photonics, Leibniz Institute of Photonic Technology, 07745, Jena, Germany
- Otto Schott Institute of Material Research, 07743, Jena, Germany
| | - Oliver Benson
- Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
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