Optical Band Multifunctional Stealth Materials Based on Selective Absorption and Radiation Nanostructures

Abstract

The invention discloses an optical band multifunctional stealth material based on a selective absorption and radiation nanostructure. The optical band multifunctional stealth material comprises a substrate, a laser stealth layer arranged on the surface of the substrate, an infrared broadband loss dielectric film layer arranged on the surface of the laser stealth layer and a visible light film layer arranged on the outermost layer. The material meets the conditions that the absorption rate of a laser wave in the wave band of 10.6 microns is more than 0.9, the absorption rate of infrared light in the wave bands of 3 to 5 microns and 8 to 14 microns is lower than 0.3 and the absorption rate of infrared light in the wave bands of 5 to 8 microns is 0.7 to 0.9. According to the optical band multifunctional stealth material, the purpose of laser stealth is realized by utilizing the laser stealth layer; spectral selective radiation and an efficient heat radiation window are realized by utilizing the interference of the infrared broadband loss dielectric film layer; the selective reflection and absorption of a visible light wave band are realized by utilizing the interference of the visiblelight film layer, and the camouflage stealth of the visible light is realized by setting different thicknesses to change the color of the stealth material.

Description

technical field [0001] The invention relates to the field of multi-stealth in light bands, in particular to a multifunctional stealth material in light bands based on selective absorption and radiation nanostructures. Background technique [0002] Military detection methods in the optical band include visible light detection, infrared detection and laser detection. Correspondingly, there are also camouflage camouflage, low-emissivity coatings, laser-absorbing coatings and other stealth means to avoid being detected. Weapons and equipment may face detection in multiple light bands such as visible light, infrared, and laser at the same time on the battlefield. It is far from enough to use stealth materials against a single frequency band. The research of multi-functional stealth materials, that is, multi-band compatible stealth materials is one of the development directions of military stealth materials technology in the future. [0003] Stealth in the full optical band need...

AI Technical Summary

Problems solved by technology

However, this structure only considers a single stealth means for infrared camera detection

[0004] At present, no nanomaterials that simultaneously realize visible light camouflage, infrared cloaking and laser cloaking have been reported.

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