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Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor

For many years twin beams originating from parametric down-converted light beams have aroused great interest and attention in the photonics community. One particular aspect of the twin beams is their peculiar intensity correlation functions, which are related to the coincidence rate of photon pairs....

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Autores principales: Boitier, F., Godard, A., Dubreuil, N., Delaye, P., Fabre, C., Rosencher, E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267054/
https://www.ncbi.nlm.nih.gov/pubmed/21829187
http://dx.doi.org/10.1038/ncomms1423
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author Boitier, F.
Godard, A.
Dubreuil, N.
Delaye, P.
Fabre, C.
Rosencher, E.
author_facet Boitier, F.
Godard, A.
Dubreuil, N.
Delaye, P.
Fabre, C.
Rosencher, E.
author_sort Boitier, F.
collection PubMed
description For many years twin beams originating from parametric down-converted light beams have aroused great interest and attention in the photonics community. One particular aspect of the twin beams is their peculiar intensity correlation functions, which are related to the coincidence rate of photon pairs. Here we take advantage of the huge bandwidth offered by two-photon absorption in a semiconductor to quantitatively determine correlation functions of twin beams generated by spontaneous parametric down-conversion. Compared with classical incoherent sources, photon extrabunching is unambiguously and precisely measured, originating from exact coincidence between down-converted pairs of photons, travelling in unison. These results strongly establish that two-photon counting in semiconductors is a powerful tool for the absolute measurement of light beam photon correlations at ultrashort timescales.
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spelling pubmed-32670542012-01-27 Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor Boitier, F. Godard, A. Dubreuil, N. Delaye, P. Fabre, C. Rosencher, E. Nat Commun Article For many years twin beams originating from parametric down-converted light beams have aroused great interest and attention in the photonics community. One particular aspect of the twin beams is their peculiar intensity correlation functions, which are related to the coincidence rate of photon pairs. Here we take advantage of the huge bandwidth offered by two-photon absorption in a semiconductor to quantitatively determine correlation functions of twin beams generated by spontaneous parametric down-conversion. Compared with classical incoherent sources, photon extrabunching is unambiguously and precisely measured, originating from exact coincidence between down-converted pairs of photons, travelling in unison. These results strongly establish that two-photon counting in semiconductors is a powerful tool for the absolute measurement of light beam photon correlations at ultrashort timescales. Nature Pub. Group 2011-08-09 /pmc/articles/PMC3267054/ /pubmed/21829187 http://dx.doi.org/10.1038/ncomms1423 Text en Copyright © 2011, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Boitier, F.
Godard, A.
Dubreuil, N.
Delaye, P.
Fabre, C.
Rosencher, E.
Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
title Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
title_full Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
title_fullStr Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
title_full_unstemmed Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
title_short Photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
title_sort photon extrabunching in ultrabright twin beams measured by two-photon counting in a semiconductor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3267054/
https://www.ncbi.nlm.nih.gov/pubmed/21829187
http://dx.doi.org/10.1038/ncomms1423
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