Choosing detectors for third generation infrared systems

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


A decision of choosing the right detector technology for third generation thermal imaging systems is directly derived from the expectations and the requirements of these systems. It is now evident that third gen. thermal imager will still need the higher resolution capabilities as well as capabilities in multispectral detection and polarization sensitivity. Four technologies candidates are analyzed; the field-proved HgCdTe (MCT), uncooled microbolometer technology, Antimonide based materials and quantum well infrared photodetectors (QWIP). Taking into accounts the risks, maturity and technologies gap of each technology, we claim that for non-strategic applications (not low background conditions), QWIP technology is the most favorite. The ternary and super lattice Antimonide based material group seems to be theoretically the best alternative, but are not recommended due to it maturity and the high risk involved in this technology. We anticipate large penetration of the uncooled detectors to the low-end and medium-end market. The HgCdTe will still be in progress due to the inertion of the large funding and the strategic importance of this detectors technology.

Original languageEnglish
Pages (from-to)919-928
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number2
StatePublished - 1 Dec 2002
Externally publishedYes
EventInfrared Technology and Applications XXVIII - Seattle, WA, United States
Duration: 7 Jul 200211 Jul 2002


  • Antimonide
  • MCT
  • Multispectral
  • QWIP
  • Third generation infrared detectors
  • Uncooled

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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