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Pixel super-resolution with spatially entangled photons

Author(s): Defienne, Hugo; Cameron, Patrick; Ndagano, Bienvenu; Lyons, Ashley; Reichert, Matthew; et al

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dc.contributor.authorDefienne, Hugo-
dc.contributor.authorCameron, Patrick-
dc.contributor.authorNdagano, Bienvenu-
dc.contributor.authorLyons, Ashley-
dc.contributor.authorReichert, Matthew-
dc.contributor.authorZhao, Jiuxuan-
dc.contributor.authorHarvey, Andrew R-
dc.contributor.authorCharbon, Edoardo-
dc.contributor.authorFleischer, Jason W-
dc.contributor.authorFaccio, Daniele-
dc.identifier.citationDefienne, Hugo, Cameron, Patrick, Ndagano, Bienvenu, Lyons, Ashley, Reichert, Matthew, Zhao, Jiuxuan, Harvey, Andrew R, Charbon, Edoardo, Fleischer, Jason W, Faccio, Daniele. (Pixel super-resolution with spatially entangled photons. Nature Communications, 13 (1), 10.1038/s41467-022-31052-6en_US
dc.description.abstractPixelation occurs in many imaging systems and limits the spatial resolution of the acquired images. This effect is notably present in quantum imaging experiments with correlated photons in which the number of pixels used to detect coincidences is often limited by the sensor technology or the acquisition speed. Here, we introduce a pixel super-resolution technique based on measuring the full spatially-resolved joint probability distribution (JPD) of spatially-entangled photons. Without shifting optical elements or using prior information, our technique increases the pixel resolution of the imaging system by a factor two and enables retrieval of spatial information lost due to undersampling. We demonstrate its use in various quantum imaging protocols using photon pairs, including quantum illumination, entanglement-enabled quantum holography, and in a full-field version of N00N-state quantum holography. The JPD pixel super-resolution technique can benefit any full-field imaging system limited by the sensor spatial resolution, including all already established and future photon-correlation-based quantum imaging schemes, bringing these techniques closer to real-world applications.en_US
dc.relation.ispartofNature Communicationsen_US
dc.rightsFinal published version. This is an open access article.en_US
dc.titlePixel super-resolution with spatially entangled photonsen_US
dc.typeJournal Articleen_US

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