Sub-Rayleigh Imaging via N-Photon Detection
Quantum Physics
2015-05-19 v1 Optics
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.
Cite
@article{arxiv.1007.0973,
title = {Sub-Rayleigh Imaging via N-Photon Detection},
author = {Fabrizio Guerrieri and Lorenzo Maccone and Franco N. C. Wong and Jeffrey H. Shapiro and Simone Tisa and Franco Zappa},
journal= {arXiv preprint arXiv:1007.0973},
year = {2015}
}