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Highly Stretchable Micro/Nano Wrinkle Structures for Infrared Stealth Application
Jia Wang1,2, Yijun Li1, Jianli Cui2
1Department of Physics, School of science, North University of China, Taiyuan, 030051, Shanxi, China.
Nanoscale Research Letters
|November 15, 2018
Summary
Researchers developed a new infrared stealth structure using stretchable triangular wrinkles. This technology significantly reduces infrared reflectivity, offering potential for advanced camouflage applications.
Area of Science:
- Materials Science
- Nanotechnology
- Optics
Background:
- Infrared stealth is crucial for military applications.
- Existing technologies face limitations in adaptability and tunability.
- Developing tunable infrared reflective surfaces is an ongoing challenge.
Purpose of the Study:
- To demonstrate a novel, stretchable infrared stealth structure.
- To achieve tunable infrared reflectivity and high reflection-to-diffuse ratios.
- To explore applications in infrared camouflage.
Main Methods:
- Fabrication of stretchable triangular wrinkle structures using MEMS technology.
- Deposition of infrared reflective materials (noble metals or multilayer oxides) onto flexible substrates.
- Characterization of infrared reflectivity and reflection-to-diffuse ratios under stretching.
Main Results:
- Achieved tunable infrared reflectivity down to 5% due to the curved surface effect.
- Improved reflection-to-diffuse ratios by approximately one order of magnitude compared to flat surfaces.
- Demonstrated a disappearing and reappearing infrared stealth structure through stretching.
Conclusions:
- The novel infrared stealth structure offers tunable reflectivity and high performance.
- The technology is low-cost, easily manufactured, and exhibits stable repeatability.
- Potential applications include military infrared camouflage and surveillance.
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