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Absolute Quantum Efficiency Measurements by Means of Conditioned Polarization Rotation

Giorgio Brida·Maria Chekhova·Marco Genovese·Marco Gramegna·Leonid Krivitsky·Maria Luisa Rastello
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Abstract

We propose a new scheme for measuring the quantum efficiency of photon counting detectors by using correlated pho-tons. The measurement technique is based on a 90 rotation of the polarization of one photon member of a correlated pair produced by parametric down-conversion, conditioned on the detection of the other correlated photon after polarization selection. We present experimental results obtained with this scheme.

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Giorgio Brida, Maria Chekhova, Marco Genovese, Marco Gramegna, Leonid Krivitsky, Maria Luisa Rastello. 2005-06-20. Absolute Quantum Efficiency Measurements by Means of Conditioned Polarization Rotation. https://arxiv.org/abs/quant-ph/0506166

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