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Detectors for scanning video imagers.

R H Webb, G W Hughes

    Applied Optics
    |September 22, 2010
    PubMed
    Summary
    This summary is machine-generated.

    For high-speed video imaging detectors, prioritize high quantum efficiency and internal gain. Photon noise, not dark noise, limits photomultiplier tubes and avalanche photodiodes due to high bandwidth.

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    Area of Science:

    • Optics and Photonics
    • Detector Technology

    Background:

    • High-speed video imaging requires sensitive detectors.
    • Existing detectors face limitations in performance.

    Purpose of the Study:

    • To guide the selection of optimal detectors for 10-MHz scanning video imagers.
    • To identify key performance metrics for high-bandwidth detector applications.

    Main Methods:

    • Analysis of detector performance metrics.
    • Comparison of photomultiplier tubes and avalanche photodiodes.

    Main Results:

    • High quantum efficiency and internal gain are critical for scanning video imagers.
    • Photon noise is the limiting factor for photomultiplier tubes and avalanche photodiodes at high bandwidths.
    • Dark noise is not the primary concern for these high-speed applications.

    Conclusions:

    • Detector selection for 10-MHz imagers must focus on quantum efficiency and internal gain.
    • Understanding noise sources, specifically photon noise, is essential for optimizing detector performance in high-bandwidth systems.