کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1536408 996567 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graphical thresholding procedure and optimal light level estimation for spatially resolved photon counting with EMCCDs
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Graphical thresholding procedure and optimal light level estimation for spatially resolved photon counting with EMCCDs
چکیده انگلیسی

Thanks to the electron multiplying function that can effectively convert the weak incident photon signal to amplified electron output, electron multiplying charged-coupled devices (EMCCDs) are becoming useful and popular detectors in photon counting regimes necessitating also spatial resolution. A multi-imaging strategy has been already proposed and experimentally tested to improve the accuracy of photon counting with an EMCCD, by taking into account the random nature of its on-chip gain and the possibility of multiple photodetection events on 1 pixel. In this paper, referring to the thresholding procedure developed for photon counting, we present a clear graphical method for the threshold and the optimal light level estimations. Thanks to the graphical visualization of the probabilities involved in the detection errors on 1 pixel, we are able to derive in a straightforward way and for any EMCCD, the threshold level and thus the best mean level of illumination to be used in order to minimize the false detection probabilities that might ruin the image statistics, especially in cases where quantum spatial effects might be observed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 285, Issue 3, 1 February 2012, Pages 218–224
نویسندگان
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