QWIP - From monochrome device towards multispectral system

N. Cohen, G. Sarusi

Research output: Contribution to journalConference articlepeer-review


A candidate for IR detectors for third generation thermal Imaging systems is the QWIP (Quantum Well Infrared Photodetector). ELOP has been gone through five years of development and evaluation of QWIP focal plane arrays and QWIP based thermal imaging system as a technology demonstrator. The R&D results are 320×256 QWIP based thermal imaging system operating in the 8-10μm band and a QWIP focal plane array that operates simultaneously at the LWIR and NIR. A few aspects of commercialization of the QWIP are described focusing on the dark current issue. The QWIP as a multispecral sensor is referred too, especially the sensitivity of the QWIP by means of NETD in comparison with other optional multispecral detectors.

Original languageEnglish
Pages (from-to)708-717
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number2
StatePublished - 2002
Externally publishedYes
EventInfrared Technology and Applications XXVIII - Seattle, WA, United States
Duration: 7 Jul 200211 Jul 2002


  • LWIR
  • MWIR
  • Multispectral
  • NETD
  • NIR
  • QWIP
  • ROIC


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