Approaching high temperature photon counting with electron-injection detectors

V. Fathipour, S. J. Jang, I. Hassaninia, Hooman Mohseni

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

10 Scopus citations

Abstract

Our group has designed and developed a novel telecom band photon detector called the electron-injection detector. The detector provides a high avalanche-free internal-amplification and a stable excess noise factor of near unity while operating at linear-mode with low bias voltages. In our previous reports on un-isolated detectors, the large dark current of the detectors prevented long integration times in the camera. Furthermore, the bandwidth of the un-isolated detectors was in the KHz range. Recently, by changing the 3D geometry and isolating the detectors from each other, we have achieved 3 orders of magnitude reduction in dark current at same bias voltage and temperature compared to our previous results. Isolated detectors have internal dark current densities of 0.1nA/cm2 at 160 K. Furthermore, they have a bandwidth that is 4 orders of magnitude higher than the un-isolated devices. In this paper we report room temperature and low temperature characteristics of the isolated electron-injection detectors. We show that the measured optical gain displays a small dependence on temperature over our measured range down to 220 K.

Original languageEnglish (US)
Title of host publicationInfrared Sensors, Devices, and Applications IV
EditorsArvind I. D'Souza, Priyalal Wijewarnasuriya, Paul D. LeVan, Ashok K. Sood
PublisherSPIE
ISBN (Electronic)9781628412475
DOIs
StatePublished - Jan 1 2014
EventInfrared Sensors, Devices, and Applications IV - San Diego, United States
Duration: Aug 18 2014Aug 20 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9220
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherInfrared Sensors, Devices, and Applications IV
CountryUnited States
CitySan Diego
Period8/18/148/20/14

Keywords

  • Single photon detector
  • bio-inspired
  • 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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