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Proceedings Paper

Observation of quantum interference in the plasmonic Hong-Ou-Mandel effect (presentation video)
Author(s): Yannick Sonnefraud; Giuliana Di Martino; Mark S Tame; Stéphane Kéna-Cohen; Frederik Dieleman; Sahin K. Ozdemir; Myungshik Kim; Stefan A. Maier
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Paper Abstract

In this presentation, we report direct evidence of the bosonic nature of SPPs in a scattering-based beamsplitter, in one of the most simple experiments of quantum optics - done using SPPs instead of photons propagating in air. A parametric down-conversion source is used to produce two indistinguishable photons, each of which is converted into a SPP on a metal-stripe waveguide and then made to interact through a semi-transparent Bragg mirror. In this plasmonic analog of the Hong-Ou-Mandel experiment, we measure a coincidence dip with a visibility of 72%, the signature that SPPs are bosons and that quantum interference is clearly involved.

Paper Details

Date Published: 17 August 2014
PDF: 1 pages
Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 916322 (17 August 2014); doi: 10.1117/12.2061003
Show Author Affiliations
Yannick Sonnefraud, Centre National de la Recherche Scientifique (France)
Giuliana Di Martino, Imperial College London (United Kingdom)
Mark S Tame, University of KwaZulu-Natal (South Africa)
Stéphane Kéna-Cohen, Imperial College London (United Kingdom)
Frederik Dieleman, Imperial College London (EXSS group) (United Kingdom)
Sahin K. Ozdemir, Washington Univ. in St. Louis (United States)
Myungshik Kim, Imperial College London (United Kingdom)
Stefan A. Maier, Imperial College London (United Kingdom)

Published in SPIE Proceedings Vol. 9163:
Plasmonics: Metallic Nanostructures and Their Optical Properties XII
Allan D. Boardman, Editor(s)

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