This paper's purpose is to review the results recently obtained in the Quantum Optics labs of the National Institute of Metrological Research (INRIM) in the field of single- and few-photon detectors calibration, from both the classical and quantum viewpoint. In the first part of the paper is presented the calibration of a single-photon detector with absolute methods, while in the second part we focus on photon-number-resolving detectors, discussing both the classical and quantum characterization of such devices.
@article{arxiv.1305.5708,
title = {Quantum and classical characterization of single/few photon detectors},
author = {M. G. Mingolla and F. Piacentini and A. Avella and M. Gramegna and L. Lolli and A. Meda and I. Ruo Berchera and E. Taralli and P. Traina and M. Rajteri and G. Brida and I. P. Degiovanni and M. Genovese},
journal= {arXiv preprint arXiv:1305.5708},
year = {2013}
}