Time-Gated Single-Photon Imager

Application domain(s)

  • E-Health

Area(s) of expertise

  • Facilities & Labs
  • Imagers & Radiation Sensors
  • MEMS & Microsystems


Time-resolved image sensor based on in-pixel SPAD and time gated photon counter implemented in the analog domain. Analog-to-digital conversion is implemented at column-level with an innovative self-referenced architecture that improves the pixel-to-pixel uniformity.










Scientific imaging applications like fluorescence lifetime imaging microscopy (FLIM), Raman spectroscopy, time-resolved near-infrared spectroscopy.

Advantages & Applications

  • Smart materials
  • Microsystems
  • Other applications include Time-of-flight 3D imaging and high-sensitivity imaging of ultrafast phenomena


  • Technology: CMOS 0.35 micrometri HV
  • Pixel pitch: 15 micrometri
  • Fill-factor: 21%
  • Minimum time-gate: 750ps
  • Array size: 120×160 pixels
  • Die size: 3.4×3.6 mm2
  • Digital output at 450 frames/s


  • TRL 4 – technology validated in a lab
  • Patented technology (WO 2016/132329 Al)
  • Fluorescence microscopy demonstrator available


  • Reference person: Matteo Perenzoni
    Tel. 0461314533,
    e-mail: [email protected]

    Research Unit IRIS: iris.fbk.eu
    Research Center CMM: cmm.fbk.eu