Open AccessResolution limits of quantum ghost imaging
Author(s) -
Paul-Antoine Moreau,
Ermes Toninelli,
Peter A. Morris,
Reuben S. Aspden,
Thomas Gregory,
Gabriel C. Spalding,
Robert W. Boyd,
Miles J. Padgett
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.007528
Subject(s) - ghost imaging , point spread function , optics , quantum imaging , physics , image resolution , resolution (logic) , photon , detector , optical transfer function , image quality , photon counting , quantum , computer science , image (mathematics) , quantum information , computer vision , artificial intelligence , quantum network , quantum mechanics
Quantum ghost imaging uses photon pairs produced from parametric downconversion to enable an alternative method of image acquisition. Information from either one of the photons does not yield an image, but an image can be obtained by harnessing the correlations between them. Here we present an examination of the resolution limits of such ghost imaging systems. In both conventional imaging and quantum ghost imaging the resolution of the image is limited by the point-spread function of the optics associated with the spatially resolving detector. However, whereas in conventional imaging systems the resolution is limited only by this point spread function, in ghost imaging we show that the resolution can be further degraded by reducing the strength of the spatial correlations inherent in the downconversion process.