Absolute Quantum Efficiency Measurements by Means of Conditioned Polarization Rotation

Details Absolute Quantum Efficiency Measurements by Means of Conditioned Polarization Rotation Absolute Quantum Efficiency Measurements by Means of Conditioned Polarization Rotation

2005-06-20

arxiv.org/abs/quant-ph/0506166v1

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 54, NO. 2, APRIL 2005, pag. 898

Physics

Quantum Physics

Scientific paper

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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