We present a method for spatially resolved multiphoton counting based on an intensified camera with the retrieval of multimode photon statistics fully accounting for nonlinearities in the detection process. The scheme relies on one-time quantum tomographic calibration of the detector. Faithful, high-fidelity reconstruction of single- and two-mode statistics of multiphoton states is demonstrated for coherent states and their statistical mixtures. The results consistently exhibit classical values of the Mandel parameter and the noise reduction factor in contrast to raw statistics of camera photo-events. Detector operation is reliable for illumination levels up to the average of one detected photon per an event area—substantially higher than in previous approaches to characterize quantum statistical properties of light with spatial resolution.
© 2014 Optical Society of America
Original Manuscript: May 19, 2014
Revised Manuscript: July 14, 2014
Manuscript Accepted: July 15, 2014
Published: August 21, 2014
Radosław Chrapkiewicz, Wojciech Wasilewski, and Konrad Banaszek, "High-fidelity spatially resolved multiphoton counting for quantum imaging applications," Opt. Lett. 39, 5090-5093 (2014)