Isolated nanoinjection photo detectors for high-speed and high-sensitivity single-photon detection

V. Fathipour, O. G. Memis, S. J. Jang, F. Khalid, R. L. Brown, I. Hassaninia, R. Gelfand, Hooman Mohseni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Scopus citations


Our group has designed and developed a new SWIR single photon detector called the nano-injection detector that is conceptually designed with biological inspirations taken from the rod cells in human eye. The detector couples a nanoscale sensory region with a large absorption volume to provide avalanche free internal amplification while operating at linear regime with low bias voltages. The low voltage operation makes the detector to be fully compatible with available CMOS technologies. Because there is no photon reemission, detectors can be formed into high-density single-photon detector arrays. As such, the nano injection detectors are viable candidates for SPD and imaging at the short-wave infrared band. Our measurements in 2007 proved a high SNR and a stable excess noise factor of near unity. We are reporting on a high speed version of the detector with 4 orders of magnitude enhancement in speed as well as 2 orders of magnitude reduction in dark current (30nA vs. 10 uA at 1.5V).

Original languageEnglish (US)
Title of host publicationInfrared Sensors, Devices, and Applications III
StatePublished - Nov 25 2013
EventInfrared Sensors, Devices, and Applications III - San Diego, CA, United States
Duration: Aug 26 2013Aug 28 2013


OtherInfrared Sensors, Devices, and Applications III
Country/TerritoryUnited States
CitySan Diego, CA


  • Single photon detector
  • bio-inspired
  • high gain bandwidth product
  • infrared detector
  • low internal dark current
  • short-wave infrared

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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