We propose a new scheme for measuring the quantum efficiency of a single-photon detection apparatus by using polarization-entangled states. The scheme consists of measuring the polarization of a member of a polarization-entangled pair after a 90° polarization rotation conditional on the detection of the correlated photon after polarization selection. We present experimental results obtained with this scheme compared with traditional biphoton calibration. Our results show the interesting potentiality of the suggested scheme.
Single-photon detector calibration by means of conditional polarization rotation / Brida, Giorgio; Genovese, M; Gramegna, Marco; Rastello, MARIA LUISA; Chekhova, M; Krivitsky, L.. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 22:(2005), pp. 488-492. [10.1364/JOSAB.22.000488]
Single-photon detector calibration by means of conditional polarization rotation
BRIDA, GIORGIO;GENOVESE M;GRAMEGNA, MARCO;RASTELLO, MARIA LUISA;
2005
Abstract
We propose a new scheme for measuring the quantum efficiency of a single-photon detection apparatus by using polarization-entangled states. The scheme consists of measuring the polarization of a member of a polarization-entangled pair after a 90° polarization rotation conditional on the detection of the correlated photon after polarization selection. We present experimental results obtained with this scheme compared with traditional biphoton calibration. Our results show the interesting potentiality of the suggested scheme.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
