Competing technology for high-speed HOT-IR-FPAs

Manijeh Razeghi, Siamak Abdollahi Pour

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

1 Scopus citations

Abstract

Recent efforts have been paid to elevate the operating temperature of Type II superlattice Mid Infrared photon detectors. Using M-structure superlattice, novel device architectures have been developed, resulting in significant improvement of the device performances. In this paper, we will compare different photodetector architectures and discuss the optimization scheme which leads to almost one order of magnitude of improvement to the electrical performance. At 150K, single element detectors exhibit a quantum efficiency above 50%, and a specific detectivity of 1.05x1012 cm.Hz1/2/W. BLIP operation with a 300K background and 2π FOV can be reached with an operating temperature up to 130K. High quality focal plane arrays were demonstrated with a noise equivalent temperature difference (NEDT) of 11mK up to 130K. Human body imaging is achieved at 165K with NEDT of 150mK.

Original languageEnglish (US)
Title of host publicationInfrared Technology and Applications XXXVIII
PublisherSPIE
Volume8353
ISBN (Print)9780819490315
DOIs
StatePublished - Jan 1 2012
Event38th Conference on Infrared Technology and Applications - Baltimore, MD, United States
Duration: Apr 23 2012Apr 27 2012

Other

Other38th Conference on Infrared Technology and Applications
CountryUnited States
CityBaltimore, MD
Period4/23/124/27/12

Keywords

  • InAs/GaSb
  • Infrared detector
  • MWIR
  • Photodetectors
  • Tunneling Barrier
  • Type-II superlattice

ASJC Scopus subject areas

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

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