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Intensified charge coupled device (ICCD) cameras are widely used in variousapplications such as microscopy, astronomy, spectroscopy. Often they are usedas single-photon detectors, with thresholding being an essential part of thereadout. In this paper, we measure the quantum efficiency of an ICCD camera inthe single-photon detection mode using the Klyshko absolute calibrationtechnique. The quantum efficiency is obtained as a function of the thresholdvalue and of the wavelength of the detected light. In addition, we study thehomogeneity of the photon sensitivity over the camera chip area. The experimentis performed in the autonomous regime, without using any additional detectors.We therefore demonstrate the self-calibration of an ICCD camera.

Autonomous absolute calibration of an ICCD camera in single-photon detection regime