Two-photon quantum interference and entanglement at 2.1 μm

Shashi Prabhakar; Taylor Shields; Adetunmise C. Dada; Mehdi Ebrahim; Gregor G. Taylor; Dmitry Morozov; Kleanthis Erotokritou; Shigehito Miki; Hirotaka Terai; Corin Gawith; Michael Kues; Lucia Caspani; Robert H. Hadfield; Matteo Clerici

doi:10.1126/sciadv.aay5195

Two-photon quantum interference and entanglement at 2.1 μm

Shashi Prabhakar
, Taylor Shields
, Adetunmise C. Dada
, Mehdi Ebrahim
, Gregor G. Taylor
, Dmitry Morozov
, Kleanthis Erotokritou
, Shigehito Miki
, Hirotaka Terai
, Corin Gawith
, Michael Kues
, Lucia Caspani
, Robert H. Hadfield
, Matteo Clerici^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

43 Downloads (Pure)

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 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.

Original language	English
Article number	eaay5195
Number of pages	7
Journal	Science Advances
Volume	6
Issue number	13
DOIs	https://doi.org/10.1126/sciadv.aay5195
Publication status	Published - 27 Mar 2020
Externally published	Yes

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10.1126/sciadv.aay5195Licence: CC BY

Two-photon quantum interference and entanglement at 2.1 μm
Copyright 2020 The Authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 362 KBLicence: CC BY

Plasmonic time domain effects at the epsilon near-zero
Haji Ebrahim, M. (Author), Huang, F. (Supervisor) & Clerici, M. (Supervisor), Jul 2023
Student thesis: Doctoral Thesis › Doctor of Philosophy

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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 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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doi = "10.1126/sciadv.aay5195",

language = "English",

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T1 - Two-photon quantum interference and entanglement at 2.1 μm

AU - Prabhakar, Shashi

AU - Shields, Taylor

AU - Dada, Adetunmise C.

AU - Ebrahim, Mehdi

AU - Taylor, Gregor G.

AU - Morozov, Dmitry

AU - Erotokritou, Kleanthis

AU - Miki, Shigehito

AU - Terai, Hirotaka

AU - Gawith, Corin

AU - Kues, Michael

AU - Caspani, Lucia

AU - Hadfield, Robert H.

AU - Clerici, Matteo

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Y1 - 2020/3/27

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AB - 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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DO - 10.1126/sciadv.aay5195

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Two-photon quantum interference and entanglement at 2.1 μm

Abstract

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Student theses

Plasmonic time domain effects at the epsilon near-zero

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