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Towards an uncertainty budget in quantum-efficiency measurements with parametric fluorescence

G Brida, S Castelletto, I P Degiovanni, M Genovese, C Novero and M L Rastello

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The aim of this paper is a critical investigation of some correction factors in the quantum-efficiency calibration of photodetectors, in the photon-counting regime, by means of correlated photons generated through a parametric down-conversion process inside a non-linear crystal. An analysis is given of the main correction factors found in a real experimental situation, with different techniques for performing coincidence counts.


PACS

85.60.Gz Photodetectors (including infrared and CCD detectors)

06.20.F- Units and standards

78.55.-m Photoluminescence, properties and materials

Subjects

Condensed matter: electrical, magnetic and optical

Electronics and devices

Instrumentation and measurement

Optics, quantum optics and lasers

Dates

Issue 5 (October 2000)



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