Two-photon quantum interference and entanglement at 2.1 μm
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY)..
Quantum-enhanced optical systems operating within the 2- to 2.5-μm spectral region have the potential to revolutionize emerging applications in communications, sensing, and metrology. However, to date, sources of entangled photons have been realized mainly in the near-infrared 700- to 1550-nm spectral window. Here, using custom-designed lithium niobate crystals for spontaneous parametric down-conversion and tailored superconducting nanowire single-photon detectors, we demonstrate two-photon interference and polarization-entangled photon pairs at 2090 nm. These results open the 2- to 2.5-μm mid-infrared window for the development of optical quantum technologies such as quantum key distribution in next-generation mid-infrared fiber communication systems and future Earth-to-satellite communications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:6 |
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| Enthalten in: |
Science advances - 6(2020), 13 vom: 09. März, Seite eaay5195 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Prabhakar, Shashi [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 28.03.2024 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1126/sciadv.aay5195 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM308436792 |
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| 520 | |a Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). | ||
| 520 | |a Quantum-enhanced optical systems operating within the 2- to 2.5-μm spectral region have the potential to revolutionize emerging applications in communications, sensing, and metrology. However, to date, sources of entangled photons have been realized mainly in the near-infrared 700- to 1550-nm spectral window. Here, using custom-designed lithium niobate crystals for spontaneous parametric down-conversion and tailored superconducting nanowire single-photon detectors, we demonstrate two-photon interference and polarization-entangled photon pairs at 2090 nm. These results open the 2- to 2.5-μm mid-infrared window for the development of optical quantum technologies such as quantum key distribution in next-generation mid-infrared fiber communication systems and future Earth-to-satellite communications | ||
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| 700 | 1 | |a Dada, Adetunmise C |e verfasserin |4 aut | |
| 700 | 1 | |a Ebrahim, Mehdi |e verfasserin |4 aut | |
| 700 | 1 | |a Taylor, Gregor G |e verfasserin |4 aut | |
| 700 | 1 | |a Morozov, Dmitry |e verfasserin |4 aut | |
| 700 | 1 | |a Erotokritou, Kleanthis |e verfasserin |4 aut | |
| 700 | 1 | |a Miki, Shigehito |e verfasserin |4 aut | |
| 700 | 1 | |a Yabuno, Masahiro |e verfasserin |4 aut | |
| 700 | 1 | |a Terai, Hirotaka |e verfasserin |4 aut | |
| 700 | 1 | |a Gawith, Corin |e verfasserin |4 aut | |
| 700 | 1 | |a Kues, Michael |e verfasserin |4 aut | |
| 700 | 1 | |a Caspani, Lucia |e verfasserin |4 aut | |
| 700 | 1 | |a Hadfield, Robert H |e verfasserin |4 aut | |
| 700 | 1 | |a Clerici, Matteo |e verfasserin |4 aut | |
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