Linear-Mode HgCdTe Avalanche Photodiodes for Photon-Counting Applications View Full Text


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Article Info

DATE

2015-05-22

AUTHORS

William Sullivan, Jeffrey Beck, Richard Scritchfield, Mark Skokan, Pradip Mitra, Xiaoli Sun, James Abshire, Darren Carpenter, Barry Lane

ABSTRACT

An overview of recent improvements in our understanding of, and the maturity of, linear-mode photon counting with the HgCdTe electron-initiated avalanche photodiode is presented. In 2010 DRS fabricated an experimental 2 × 8 array with (64 μm)2 pixels which enabled, for the first time, linear-mode photon counting by use of the MWIR cutoff HgCdTe electron-initiated avalanche photodiode. The device had a high single-photon signal-to-noise ratio of 13.7, an excess noise factor of 1.3–1.4, a 7 ns minimum time between events, and a broad spectral response extending from 0.4 μm to 4.2 μm. DRS recently fabricated a new set of devices with improved yield and performance compared with the first device: the false event rate was reduced by a factor of almost 10 to 150 kHz, the photon detection efficiency was increased from 50% to >60%, and the APD gain was increased by a factor of 4 to over 1900. More... »

PAGES

3092-3101

References to SciGraph publications

  • 2011-06-14. History-Dependent Impact Ionization Theory Applied to HgCdTe e-APDs in JOURNAL OF ELECTRONIC MATERIALS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s11664-015-3824-3

    DOI

    http://dx.doi.org/10.1007/s11664-015-3824-3

    DIMENSIONS

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