Research on multi-band compatible stealth film based on D/M/D structure in green circumstance

Chenglong Ding; Xuesong Deng

doi:10.1117/12.2661617

12 April 2023 Research on multi-band compatible stealth film based on D/M/D structure in green circumstance

Chenglong Ding, Xuesong Deng

Proceedings Volume 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022); 125650C (2023) https://doi.org/10.1117/12.2661617
Event: Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 2022, Shanghai, China

Abstract

Green plants are commonly found in typical combat circumstances, so it is of important practical significance to make targets hidden in green plants. Green plants have special spectral characteristics in the visible and near-infrared bands, which makes the above purpose of stealth difficult to achieve. Meanwhile, to counter multi-band detection, the stealthy performance of targets in the infrared bands and at the laser wavelength needs to be considered. In this paper, a new structure of the green film is designed, based on the characteristic matrix method, which can achieve compatible stealth of the visible, near-infrared, middle, and far infrared as well as 1.06 μm laser. The film consists of the dielectric/metal/dielectric (D/M/D) structure combined with additional four dielectric layers, which has fewer total layers than the previous structure and can improve the preparation efficiency. In the visible and near-infrared bands, the film possesses suitable chromaticity coordinates and spectral characteristics similar to those of green plants. In the middle and far infrared bands, the film exhibits high reflectivity of 0.857 and 0.924, respectively; at 1.06 μm wavelength, the film shows low reflectivity of 0.107. Exploring the effect of different angles on the spectra, the results prove that the structure has good angular stability. In summary, the designed film achieves multi-band compatible stealth in green circumstance.

Citation Download Citation

Chenglong Ding and Xuesong Deng "Research on multi-band compatible stealth film based on D/M/D structure in green circumstance", Proc. SPIE 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 125650C (12 April 2023); https://doi.org/10.1117/12.2661617

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KEYWORDS

Reflectivity

Visible radiation

Far infrared

Target detection

Thin films

Structural design

Zinc

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