Related Experiment Video
Updated: Jun 5, 2025
08:48
Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
Published on: September 25, 2020
5.7K
Deep-subwavelength multilayered meta-coatings for visible-infrared compatible camouflage
Chong Tan1,2, Zhengji Wen1, Jinguo Zhang1,3
1State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
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.
