Translator Disclaimer
20 July 2010 The darkest EMCCD ever
Author Affiliations +
EMCCDs are devices capable of sub-electron read-out noise at high pixel rate, together with a high quantum efficiency (QE). However, they are plagued by an excess noise factor (ENF) which has the same effect on photometric measurement as if the QE would be halved. In order to get rid of the ENF, the photon counting (PC) operation is mandatory, with the drawback of counting only one photon per pixel per frame. The high frame rate capability of the EMCCDs comes to the rescue, at the price of increased clock induced charges (CIC), which dominates the noise budget of the EMCCD. The CIC can be greatly reduced with an appropriate clocking, which renders the PC operation of the EMCCD very efficient for faint flux photometry or spectroscopy, adaptive optics, ultrafast imaging and Lucky Imaging. This clocking is achievable with a new EMCCD controller: CCCP, the CCD Controller for Counting Photons. This new controller, which is now commercialized by Nüvü cameras inc., was integrated into an EMCCD camera and tested at the observatoire du mont-M'egantic. The results are presented in this paper.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Olivier Daigle, Pierre-Olivier Quirion, and Simon Lessard "The darkest EMCCD ever", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 774203 (20 July 2010);


Photon counting with an EMCCD
Proceedings of SPIE (January 25 2010)
CCCP: a CCD controller for counting photons
Proceedings of SPIE (July 09 2008)
EMCCD technology and its impact on rapid low-light photometry
Proceedings of SPIE (September 29 2004)
Kepler instrument performance: an in-flight update
Proceedings of SPIE (August 05 2010)
Photon counting and fast photometry with L3 CCDs
Proceedings of SPIE (September 30 2004)

Back to Top