Tuesday, April 16, 2013

Advances in SPAD Imagers

SPIE published "Advances in time-of-flight and time-correlated single-photon-counting devices" article by Daniel Durini (Fraunhofer) and Franco Zappa (Politecnico di Milano). The article mostly lists the achievements made as a part of the European Commission's MiSPiA (Microelectronic Single-Photon 3D Imaging Arrays for low-light high-speed Safety and Security Applications) project. For instance, SPAD-based imager with 30um pixels with 12 counts per second (cps) at room temperature and 5V of excess bias over the breakdown voltage.

Correction: The 30um relates to SPAD active area. The pixel size is 100um or more. Thanks to LP for correction!

32x64 pixel SPAD imager with microlenses

4 comments:

  1. Hi Vladimir, 30um is the diameter of the SPAD active area. The pixel size is 100 or 150um. Anyway, 12 cps for a 30um SPAD at room temperature is really an outstanding result, congratulations to the MiSPiA team! I wonder if the dark count rate distribution is also that good.

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    1. Thanks, Lucio! I've added correction to the post.

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  2. Is it possible to know where this microlens array was fabricated please??

    -yang ni

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    Replies
    1. Nalux maybe able to supply these http://naluxnanooptical.com/Microlens_Arrays.html

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