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Deep-subwavelength multilayered meta-coatings for visible-infrared compatible camouflage

  • 0State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.
Nanophotonics (berlin, Germany) +

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December 5, 2024

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December 5, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Researchers developed a novel deep-subwavelength meta-coating for advanced camouflage. This technology offers independent control over visible color and infrared emission for versatile military and civilian applications.

Area Of Science

  • Materials Science
  • Optics
  • Nanotechnology

Background

  • Camouflage is crucial for survival in nature and has significant military and civilian applications.
  • Developing advanced camouflage technologies is an ongoing scientific pursuit.

Purpose Of The Study

  • To propose and validate a novel deep-subwavelength meta-coating for visible-infrared compatible camouflage.
  • To demonstrate independent control over visible color and infrared emission properties.

Main Methods

  • Fabrication of a four-layered meta-coating (Si/Bi/Si/Cr) with a total thickness of ~355 nm.
  • Analysis of visible color tuning by adjusting the top Si layer thickness.
  • Evaluation of selective high emissivity in non-atmospheric windows for infrared camouflage.

Main Results

  • The meta-coating exhibits independently tunable visible color and infrared emission.
  • Deep-subwavelength nature ensures high angle tolerance in both visible and infrared spectra.
  • Successful validation of compatible camouflage in diverse environmental conditions.

Conclusions

  • The proposed meta-coating offers effective visible-infrared compatible camouflage.
  • Its properties, including angular insensitivity and large-area fabrication feasibility, make it suitable for military weapons and anti-counterfeiting.

Keywords: