title: Analysis of the possibility of analog detectors calibration by exploiting stimulated parametric down conversion.
abstract: Spontaneous parametric down conversion (SPDC) has been largely exploited as a tool for absolute calibration of photon-counting detectors, i.e detectors registering very small photon fluxes. In [J. Opt. Soc. Am. B 23, 2185 (2006)] we derived a method for absolute calibration of analog detectors using SPDC emission at higher photon fluxes, where the beam is seen as a continuum by the detector. Nevertheless intrinsic limitations appear when high-gain regime of SPDC is required to reach even larger photon fluxes. Here we show that stimulated parametric down conversion allow one to avoid this limitation, since stimulated photon fluxes are increased by the presence of the seed beam.
authors: Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy.
authors: Giorgio
authors: G
authors: Brida
authors: Maria
authors: M
authors: Chekhova
authors: Marco
authors: M
authors: Genovese
authors: Ivano
authors: I
authors: Ruo-Berchera
mesh_terms: D002138:Calibration; D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005060:Europe; D008027:Light; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D010783:Photometry / Q000295:instrumentation* / Q000592:standards*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity