Sub-Rayleigh Imaging via N-Photon Detection
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Guerrieri-2010-Sub-Rayleigh Imaging.pdf
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Author(s)
Maccone, Lorenzo
Wong, Franco N. C.
Shapiro, Jeffrey H.
Tisa, Simone
Zappa, Franco
Guerrieri, Fabrizio
Date Issued
October 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Guerrieri, Fabrizio et al. “Sub-Rayleigh Imaging via N-Photon Detection.” Physical Review Letters 105.16 (2010): 163602.© 2010 The American Physical Society.
Version
Final published version
Abstract
The Rayleigh diffraction bound sets the minimum separation for two point objects to be distinguishable in a conventional imaging system. We demonstrate sub-Rayleigh resolution by scanning a focused beam—in an arbitrary, object-covering pattern that is unknown to the imager—and using N-photon photodetection implemented with a single-photon avalanche detector array. Experiments show resolution improvement by a factor ∼(N-N̅ [subscript max])1/2 beyond the Rayleigh bound, where N̅ [subscript max] is the maximum average detected photon number in the image, in good agreement with theory.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.163602
