Sub-Rayleigh Imaging via N-Photon Detection
Author(s)Maccone, Lorenzo; Wong, Franco N. C.; Shapiro, Jeffrey H.; Tisa, Simone; Zappa, Franco; Guerrieri, Fabrizio; ... Show more Show less
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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.
DepartmentMassachusetts Institute of Technology. Research Laboratory of Electronics
Physical Review Letters
American Physical Society
Guerrieri, Fabrizio et al. “Sub-Rayleigh Imaging via N-Photon Detection.” Physical Review Letters 105.16 (2010): 163602.© 2010 The American Physical Society.
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