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Opto-Electronics Review

Editor-in-Chief: Jaroszewicz, Leszek

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Volume 20, Issue 3


Understanding the NEΔT of tactical infrared focal plane arrays

P. Norton
Published Online: 2012-07-04 | DOI: https://doi.org/10.2478/s11772-012-0039-5


NEΔT is the commonly used figure-of-merit for infrared-imaging systems using focal plane arrays (FPAs). This paper discusses an intuitive approach to understanding what determines this value in the majority of MWIR and LWIR broad-band applications, namely, the available charge storage capacity of the FPA readout. This conclusion is a consequence of the negligible amount of dark current compared to photo-current for modern detector technology.

Keywords: MWIR; LWIR; detectors; infrared

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  • [5] The author acknowledges helpful discussions with Dr. John Hubbs on this matter. Google Scholar

About the article

Published Online: 2012-07-04

Published in Print: 2012-09-01

Citation Information: Opto-Electronics Review, Volume 20, Issue 3, Pages 275–278, ISSN (Online) 1896-3757, DOI: https://doi.org/10.2478/s11772-012-0039-5.

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© 2012 SEP, Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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