Operation of silicon single photon avalanche diodes at cryogenic temperature.

@article{Rech2007OperationOS,
  title={Operation of silicon single photon avalanche diodes at cryogenic temperature.},
  author={Ivan Rech and Ivan Labanca and Giacomo Armellini and Angelo Gulinatti and Massimo Ghioni and Sergio Cova},
  journal={The Review of scientific instruments},
  year={2007},
  volume={78 6},
  pages={063105}
}
This article reports a complete characterization of single photon avalanche diodes (SPADs) at temperatures down to 120 K. We show that deep cooling of the device by means of a compact liquid-nitrogen Dewar brings several advantages, such as extremely low dark counting rates (down to 1 counts/s), better time resolution, and higher quantum efficiency in the visible range. By using a special current pick-off circuit, we achieved a time resolution of 20 ps full width at half maximum at 120 K for a… CONTINUE READING