Sub-Rayleigh Imaging via N-Photon Detection

Abstract

The Rayleigh diffraction bound sets the minimum separation for two point objects to be distinguishable in a conventional imaging system. We demonstrate resolution enhancement beyond the Rayleigh bound using random scanning of a highly-focused beam and N-photon photodetection implemented with a single-photon avalanche detector array. Experimental results show resolution improvement by a factor ~sqrt(N) beyond the Rayleigh bound, in good agreement with theory.

References in corpus (5)

• Unified Theory of Ghost Imaging with Gaussian-State Light
• Quantum Imaging beyond the Diffraction Limit by Optical Centroid Measurements
• Quantum Imaging with Incoherent Photons
• Sub-Rayleigh Quantum Imaging
• Enhancing image contrast using coherent states and photon number resolving detectors

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• Precision Estimation of Source Dimensions from Higher-Order Intensity Correlations
• Preparing macroscopic mechanical quantum superpositions via photon detection
• Two-photon imaging assisted by a dynamic random medium
• Super sub-wavelength patterns in photon coincidence detection
• Enhancement of spatial resolution of ghost imaging via localizing and thresholding
• Enhanced Quantum Communication via Optical Refocusing
• Spatial sub-Rayleigh imaging analysis via speckle laser illumination
• Classical reconstruction of interference patterns of position-wavevector-entangled photon pairs by time-reversal method
• Numerical Optical Centroid Measurements