Phase gradient metasurface structure for visible-infrared-laser compatible stealth camouflage

= 0.15), demonstrating superior thermal stealth performance. The metasurface maintains low reflectivity over a wide angular range in the 8-14 μm band (R < 0.2 in 0-45°), contributing to effective laser stealth. Furthermore, by depositing zinc sulfide (ZnS) films with varying thicknesses onto the metasurface, the visible reflectance spectrum is precisely engineered to emulate background coloration, enabling high-fidelity visible camouflage. This study successfully addresses the persistent challenge of spectral coupling and regulation conflicts in multispectral stealth, offering a viable strategy for wide-angle, broadband compatible camouflage with promising applications in military defense.