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Retrieval of spatial shot-noise in the full dynamic range of calibrated CCD cameras |
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| Authors: | Y Jiang O Jedrkiewicz S Minardi P DiTrapani A Mosset E Lantz F Devaux |
| Institution: | 1.INFM and Department of Chemical, Physical and Mathematical Sciences, University of Insubria, Via Valleggio 11, 22100 Como, Italy,IT;2.Laboratoire d'Optique P.M. Duffieux, Université de Franche-Comté, UFR des Sciences et Techniques, route de Gray, 25030 Besan?on Cedex, France,FR |
| Abstract: | The pixel by pixel calibration of a scientific CCD camera allows Poissonian statistics of the spatial fluctuations of an uniform enlightening to be retrieved in the full range of the camera dynamic. The procedure works efficiently for thermal as well as for laser sources, provided that the wavelength and the coherence properties of the source are chosen in order to avoid the formation of equal thickness fringes in the chip (etaloning effect). Calibration allows also the comparison at the shot noise level of images recorded at different places on the chip. Received 9 September 2002 / Received in final form 16 October 2002 Published online 21 January 2003 |
| Keywords: | PACS 41 85 Ew Beam profile beam intensity – 42 50 Ar Photon statistics and coherence theory – 42 50 Lc Quantum fluctuations quantum noise and quantum jumps – 42 79 -e Optical elements devices and systems |
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