Uncooled infrared thermal detector arrays

  • N. M. Shorrocks
  • , Stephen G. Porter
  • , Roger W. Whatmore
  • , Andy D. Parsons
  • , J. N. Gooding
  • , David J. Pedder

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

Uncooled detectors of infra-red radiation exploiting the pyroelectric effect have considerable potential for thermal imaging applications when used in 1-D and 2-D arrays. This paper discusses the factors controlling the performances of such arrays. Lead scandium tantalate is a new ferroelectric ceramic which gives a very high figure-of-meriL The properties of this material are reported and compared and contrasted with those of other ferroelectric ceramics. The possibilities for direct fabrication of thin films of the materials are discussed. Linear arrays of detectors with D∗'s of up to 5x108 cmHzlaW' and 2-dimensional arrays (up to 100x100) with NETD's below 0.2K (25Hz,f/i) have been developed. The technologies for processing these arrays, including the use of reticulation for thermal MTF and microphony improvement, are discussed.

Original languageEnglish
Title of host publicationInfrared Technology and Applications
PublisherSPIE
Pages88-94
Number of pages7
ISBN (Electronic)9780819403810
DOIs
Publication statusPublished - 1990
Externally publishedYes
Event8th International Conference Infrared Technology and Applications - London, United Kingdom
Duration: 26 Jun 199028 Jun 1990

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1320
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference8th International Conference Infrared Technology and Applications
Country/TerritoryUnited Kingdom
CityLondon
Period26/06/9028/06/90

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