Title :
Absolute quantum efficiency measurements by means of conditioned polarization rotation
Author :
Brida, Giorgio ; Chekhova, Maria ; Genovese, Marco ; Gramegna, Marco ; Krivitsky, Leonid ; Rastello, Maria Luisa
Author_Institution :
Inst. Elettrotecnico Nazionale "Galileo Ferraris", Torino, Italy
fDate :
4/1/2005 12:00:00 AM
Abstract :
We propose a new scheme for measuring the quantum efficiency of photon counting detectors by using correlated photons. 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.
Keywords :
optical frequency conversion; photodetectors; photon counting; photon polarisation; radiometry; absolute quantum efficiency measurement; conditioned polarization rotation; correlated photon pair; correlated photons; parametric down-conversion; photon counting detectors; photon polarization; radiometry; Calibration; Detectors; Laser excitation; Measurement techniques; Optical fiber polarization; Photonic crystals; Radiometry; Rotation measurement; Signal detection; Wavelength measurement; Photodetectors; quantum efficiency; radiometry;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2005.843570
