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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 8 — Mar. 10, 2008
  • pp: 1141–1151

New generation photon-counting cameras: algol and CPNG

Alain Blazit, Xavier Rondeau, Éric Thiébaut, Lyu Abe, Jean-Claude Bernengo, Jean-Louis Chevassut, Jean-Michel Clausse, Jean-Pierre Dubois, Renaud Foy, Denis Mourard, Fabien Patru, Alain Spang, Isabelle Tallon-Bosc, Michel Tallon, Yves Tourneur, and Farrokh Vakili  »View Author Affiliations


Applied Optics, Vol. 47, Issue 8, pp. 1141-1151 (2008)
http://dx.doi.org/10.1364/AO.47.001141


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Abstract

Algol and Comptage de Photons Nouvelle Génération (CPNG) are new generation photon counting cameras developed for high angular resolution in the visible by means of optical aperture synthesis and speckle interferometry and for photon noise limited fast imaging of biological targets. They are intensified CCDs. They have been built to benefit from improvements in photonic commercial components, sensitivity, and personal computer workstations processing power. We present how we achieve optimal performances (sensitivity and spatiotemporal resolution) by the combination of proper optical and electronics design, and real-time elaborated data processing. The number of pixels is 532 × 516 and 1024 2 read at a frame rate of 262 and 100 Hz for CPNG and Algol, respectively. The dark current is very low: 5.5 × 10 - 4 e . pixel 1 . s 1 . The saturation flux is 7   photon events   / pixel / s . Quantum efficiencies reach up to 36% and 26% in the visible with the GaAsP photocathodes and in the red with the GaAs ones, respectively, thanks to the sensitivity of the photocathodes and to the photon centroiding algorithm; they are likely the highest values reported for intensified CCDs.

© 2008 Optical Society of America

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(040.0040) Detectors : Detectors
(100.6640) Image processing : Superresolution

ToC Category:
Detectors

History
Original Manuscript: October 8, 2007
Manuscript Accepted: November 9, 2007
Published: March 10, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Alain Blazit, Xavier Rondeau, Éric Thiébaut, Lyu Abe, Jean-Claude Bernengo, Jean-Louis Chevassut, Jean-Michel Clausse, Jean-Pierre Dubois, Renaud Foy, Denis Mourard, Fabien Patru, Alain Spang, Isabelle Tallon-Bosc, Michel Tallon, Yves Tourneur, and Farrokh Vakili, "New generation photon-counting cameras: algol and CPNG," Appl. Opt. 47, 1141-1151 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-8-1141

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