Dual- and triple-band AR coatings for IR systems

Daniel Cohen; Yevgeni Stolov; Amnon Azran; Mordechai Gilo

doi:10.1117/12.2014826

18 June 2013 Dual- and triple-band AR coatings for IR systems

Daniel Cohen, Yevgeni Stolov, Amnon Azran, Mordechai Gilo

Proceedings Volume 8704, Infrared Technology and Applications XXXIX; 870422 (2013) https://doi.org/10.1117/12.2014826
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

Dual-band infrared camera systems allow viewing and comparison of the 3-5µ and 8-12µ spectrum regions, improve visibility at sunrise/sunset and help distinguish between targets and decoys. They also enhance the ability to defeat many IR countermeasures such as smoke, camouflage and flares. As dual band 3rd generation FLIR systems progress, we introduce coatings for these systems. This paper describes advanced dual band coatings for the 3-5µ and 8-12µ spectrum regions, with reference to single band coatings. Theoretical and measured designs are shown for ZnSe, ZnS, Ge and IG-6 substrates. Triple band AR coatings with additional transmittance at 1.06µ are also demonstrated.

Citation Download Citation

Daniel Cohen, Yevgeni Stolov, Amnon Azran, and Mordechai Gilo "Dual- and triple-band AR coatings for IR systems", Proc. SPIE 8704, Infrared Technology and Applications XXXIX, 870422 (18 June 2013); https://doi.org/10.1117/12.2014826

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