Large area optically transparent frequency selective surface absorber for dual band millimeter-wave / IR stealth

JinA Lee; Kiwook Han; HyeonBo Shim; JaeWon Hahn

doi:10.1117/12.2682786

5 October 2023 Large area optically transparent frequency selective surface absorber for dual band millimeter-wave / IR stealth

JinA Lee, Kiwook Han, HyeonBo Shim, JaeWon Hahn

Author Affiliations +

Proceedings Volume PC12653, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XX; PC126530K (2023) https://doi.org/10.1117/12.2682786
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

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Abstract

In this study, a large area optically transparent frequency selecive surface absorber (OTFA) for dual-band millimeter-wave/IR stealth was designed and fabricated. ITO coated PET films were processed by wet etching and laminating with OCA in commercial display production process, 40cm*40cm size OTFA was fabricated. It achieved absorptivity over 95% at 35 GHz and 94 GHz. Also, transmission more than 65% in visible band. ITO pattern at the surface shows average emissivity less than 25%. The study's results suggest that the proposed absorber has significant potential in stealth technology for its large-scale production possibilities, with multispectral stealth performance.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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JinA Lee, Kiwook Han, HyeonBo Shim, and JaeWon Hahn "Large area optically transparent frequency selective surface absorber for dual band millimeter-wave / IR stealth", Proc. SPIE PC12653, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XX, PC126530K (5 October 2023); https://doi.org/10.1117/12.2682786

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