Two-photon quantum interference and entanglement at 2.1μm
Two-photon quantum interference and entanglement at 2.1μm
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 2090nm. 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.
Prabhakar, Shashi
62c0a826-340f-4781-b33a-d48f9ce6a921
Shields, Taylor
cfca18c5-662f-4712-b102-0621c82b8c07
Dada, Adetunmise
59df6fc9-3ea0-4381-9be9-7834f0e77922
Ebrahim, Mehdi
d1941f87-7405-4fa4-ba27-ef2937f6ef97
Taylor, Gregor G.
d2cf7814-0bfb-422e-b710-057b4614190c
Morozov, Dmitry
ea9372bb-486d-4575-bb0d-bddd5d2cfd6f
Erotokritou, Kleanthis
67053174-155e-48ce-841b-eb3105971ced
Miki, Shigehito
55caea70-7483-434f-9cb3-dcf07a9731a9
Yabuno, Mashahiro
5f14d20b-73a1-468d-a329-bcb9660fe292
Terai, Hirotaka
718fd9f3-69c6-42d9-a792-28cb57208432
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Kues, Michael
3e4cf38a-eb15-4b35-817c-014927ffaae9
Caspani, Lucia
61824028-9b9e-4c13-ab4a-4ddef2b5e959
Hadfield, Robert
8c33cbe7-4c71-4198-9a96-029bbea93b22
Clerici, Matteo
9567b2f6-2f8f-4f04-8a74-eba390c4a430
27 March 2020
Prabhakar, Shashi
62c0a826-340f-4781-b33a-d48f9ce6a921
Shields, Taylor
cfca18c5-662f-4712-b102-0621c82b8c07
Dada, Adetunmise
59df6fc9-3ea0-4381-9be9-7834f0e77922
Ebrahim, Mehdi
d1941f87-7405-4fa4-ba27-ef2937f6ef97
Taylor, Gregor G.
d2cf7814-0bfb-422e-b710-057b4614190c
Morozov, Dmitry
ea9372bb-486d-4575-bb0d-bddd5d2cfd6f
Erotokritou, Kleanthis
67053174-155e-48ce-841b-eb3105971ced
Miki, Shigehito
55caea70-7483-434f-9cb3-dcf07a9731a9
Yabuno, Mashahiro
5f14d20b-73a1-468d-a329-bcb9660fe292
Terai, Hirotaka
718fd9f3-69c6-42d9-a792-28cb57208432
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Kues, Michael
3e4cf38a-eb15-4b35-817c-014927ffaae9
Caspani, Lucia
61824028-9b9e-4c13-ab4a-4ddef2b5e959
Hadfield, Robert
8c33cbe7-4c71-4198-9a96-029bbea93b22
Clerici, Matteo
9567b2f6-2f8f-4f04-8a74-eba390c4a430
Prabhakar, Shashi, Shields, Taylor, Dada, Adetunmise, Ebrahim, Mehdi, Taylor, Gregor G., Morozov, Dmitry, Erotokritou, Kleanthis, Miki, Shigehito, Yabuno, Mashahiro, Terai, Hirotaka, Gawith, Corin, Kues, Michael, Caspani, Lucia, Hadfield, Robert and Clerici, Matteo
(2020)
Two-photon quantum interference and entanglement at 2.1μm.
Science Advances, 6 (13), [eaay5195].
(doi:10.1126/sciadv.aay5195).
Abstract
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 2090nm. 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.
Text
Two-photon quantum interference and entanglement at 2.1um
- Version of Record
More information
Accepted/In Press date: 3 January 2020
Published date: 27 March 2020
Additional Information:
Funding Information:
M.C., S.P., R.H.H., and C.G. acknowledge the support from Innovate UK (project PEPE EP/R043299/1). M.C. and A.C.D. acknowledge the support from the UK Research and Innovation (UKRI) and the UK Engineering and Physical Sciences
Publisher Copyright:
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).
Identifiers
Local EPrints ID: 439112
URI: http://eprints.soton.ac.uk/id/eprint/439112
ISSN: 2375-2548
PURE UUID: c347886b-abde-4547-9f52-8c2c4a5263d9
Catalogue record
Date deposited: 03 Apr 2020 16:30
Last modified: 12 Nov 2024 02:37
Export record
Altmetrics
Contributors
Author:
Shashi Prabhakar
Author:
Taylor Shields
Author:
Adetunmise Dada
Author:
Mehdi Ebrahim
Author:
Gregor G. Taylor
Author:
Dmitry Morozov
Author:
Kleanthis Erotokritou
Author:
Shigehito Miki
Author:
Mashahiro Yabuno
Author:
Hirotaka Terai
Author:
Corin Gawith
Author:
Michael Kues
Author:
Lucia Caspani
Author:
Robert Hadfield
Author:
Matteo Clerici
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics