• OptoElectronic Components

    28 Des Lilas
    Kirkland, QC H9J 4A7
    Canada
    514-694-0336
    514-694-8535
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    More Info on OptoElectronic Components

    Offers a deep understanding of photon counting detectors and applications. Provides detectors with 30ps timing resolution, superior detection efficiency, low dark counts and low afterpulsing.

    Articles

    (Courtesy of Politecnico di Milano all images [3])
    FIGURE 1. The vertical cross-section (a) of a typical thin double epitaxial single-photon avalanche diode (SPAD) is contrasted with the cross-section of the active region of a thin SPAD (b) with a qualitative electric field profile for the multiplying space-charge region.
    A new planar structure for silicon single-photon-counting detectors leads to the doubling of detector efficiency while maintaining picosecond timing resolution, low dark counts...
    (Courtesy of Politecnico di Milano)
    FIGURE 1. The layout of a pixel in a 32 × 32 photon-counting camera includes a SPAD detector, front-end quenching circuit, and counter. When a photon triggers the SPAD, the VLQC senses the avalanche, quenches the current, and resets the SPAD (right); the ancillary electronics send a count to the counter.
    A 32 × 32-pixel single-photon-counting camera consists of single-photon avalanche diodes with all electronics incorporated within each pixel.
    (Courtesy of OptoGration)
    FIGURE 1. Designed for use in flash-ladar systems, a new type of large-format avalanche photodiode array measuring 256 × 256 pixels (1.5 cm2) overcomes manufacturing issues that caused shifts in operating voltage.
    The various operation modes of avalanche photodiodes enable them to be optimized for applications from 3-D imaging to communications with Mars.
    FIGURE 1. A SPAD reach-through structure has a thick depleted region (top). A planar structure has thin depletion for ultrafast timing response (bottom).
    Many applications in bioscience, imaging, and lidar require low-light detection. In fluorescence-correlation spectroscopy, for example, the confocal technique used to examine ...

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