Metal-Based Graphical SiO2/Ag/ZnS/Ag Hetero-Structure for Visible-Infrared Compatible Camouflage

Abstract

A brand-new approach to realizing visible-infrared compatible camouflage is proposed based on a metal-based graphical hetero-structure (MGHS) SiO2/Ag/ZnS/Ag. For different thicknesses (20, 40, and 60 nm) of color-controlling sub-layer, high-contract and large-span structure colors (yellow, navy, and cyan) were observed due to reintroducing constructive interference with a matching intensity of reflected waves. Ultra-low infrared emissivity values of 0.04, 0.05, and 0.04 (with high average reflectance values of 95.46%, 95.31%, and 95.09%) were obtained at 3–14 μm. In addition, the well-performing trisecting-circle structure further indicates that it is feasible to design on-demand compatible camouflage patterns using the easily-prepared MGHS.

Bioinspired Porous Anodic Alumina/Aluminum Flake Powder for Multiband Compatible Low Detectability

“…The similar temperature implied that the PAA/AFP had equally strong infrared camouflage as the AFP. A comprehensive analysis of the visible–infrared compatible camouflage performance of the reported material ,,− showed that the PAA/AFP had both high visible and infrared camouflage, as shown in in Figure c.…”

“…Coatings on the left and right wings are AFP coatings and PAA/AFP coatings, respectively. (c) Grayscale and infrared emissivity of PAA/AFP compared to AFP, commercial Vantablack, and recently reported visible–infrared compatible camouflage materials. ,,− (d) Infrared camouflage demonstration of Vantablack, AFP, and PAA/AFP. (e) Infrared camouflage demonstration of coatings.…”

Design, preparation, and property analysis of metal/dielectric multilayer film with wavelength selectivity

“…Among a variety of energy-saving glasses, metal/dielectric multilayer films have been widely discussed in the academic world because of their simple structure, high visible light transmittance and high near-infrared reflectivity. Currently, metal/dielectric multilayer films have important applications in energy-saving glass [3][4][5][6][7][8][9], solar energy utilization [10][11][12][13][14][15][16][17], infrared stealth [18][19][20][21][22][23][24], and other fields. The core idea is to optimize the thickness and material of each film layer to achieve regulation of the radiation characteristics of each band.…”

A tunable infrared emitter based on phase-changing material GST for visible-infrared compatible camouflage with thermal management

“…To date, visible-infrared compatible camouflage devices have been successfully developed by using plasmonic metamaterials, [30][31][32] photonic crystals, [33][34][35] multilayer film structures [36][37][38][39][40][41] and composites. [42][43][44] For instance, Wu et al proposed an optically transparent infrared emitter composed of a metalinsulator-metal nanostructure to achieve visible-infrared compatible camouflage and radiation heat dissipation.…”