https://doi.org/10.1140/epjd/e2003-00002-4
Retrieval of spatial shot-noise in the full dynamic range of calibrated CCD cameras
1
INFM and Department of
Chemical, Physical and Mathematical Sciences, University of
Insubria, Via Valleggio 11, 22100 Como, Italy
2
Department of Electronic Science and Applied Physics, Fuzhou university 350002,
P.R. China
3
Laboratoire d'Optique P.M. Duffieux (UMR 6603 CNRS) ,
Université de Franche-Comté, UFR des Sciences et Techniques,
route de Gray, 25030 Besançon Cedex, France
Corresponding author: a fabrice.devaux@univ-fcomte.fr
Received:
9
September
2002
Revised:
16
October
2002
Published online:
21
January
2003
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.
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
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
