We propose and demonstrate experimentally a new method based on the spatial entanglement for the absolute calibration of analog detectors. The idea consists on measuring the sub-shot-noise intensity correlation between two branches of parametric down conversion, containing many pairwise correlated spatial modes. We calibrate a scientific CCD camera and a preliminary evaluation of the uncertainty indicates the metrological interest of the method.
, Detection of multimode spatial correlation in PDC and application to the absolute calibration of a CCD camera / Brida, Giorgio; Genovese, Marco; Rastello, MARIA LUISA; RUO BERCHERA, Ivano; Degiovanni, IVO PIETRO. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 20:20(2010), pp. 20572-20579.
, Detection of multimode spatial correlation in PDC and application to the absolute calibration of a CCD camera
BRIDA, GIORGIO;GENOVESE, MARCO;RASTELLO, MARIA LUISA;RUO BERCHERA, IVANO;DEGIOVANNI, IVO PIETRO
2010
Abstract
We propose and demonstrate experimentally a new method based on the spatial entanglement for the absolute calibration of analog detectors. The idea consists on measuring the sub-shot-noise intensity correlation between two branches of parametric down conversion, containing many pairwise correlated spatial modes. We calibrate a scientific CCD camera and a preliminary evaluation of the uncertainty indicates the metrological interest of the method.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
