微纳结构飞切加工与表面结构色调控

Bright structural color will be produced with the light irradiating on the micro-nano structure with the size order of visible light wavelength. The structural color property is determined by the shape characteristic and the period of the micro-nano structure, and the brightness of the color is determined by the surface quality of the micro-nano structure. Focusing on this point, a method termed as axial-direction feed fly cutting is proposed for the fabrication of structural color surface on the Nickel phosphorus (Ni-P). Shuttle-shaped micro-nano structure with period of 200~1 000 nm and surface roughness of 7~10 nm is efficiently machined in this process and the color property of the corresponding structural color unit is well manipulated. Then the large area structural color surface with designed structural color pattern is fabricated through the seamless splicing of the structure color pixel unit by planning the machining path and controlling process parameters. The proposed machining method has great potential value in structure color filter, micro-nano bionic structure and functional surface.