Structural coloration of non-metallic material using vibration-assisted cutting (IMAGE)
Caption
a, The schematic principle diagram of vibration- assisted cutting of diffractive gratings for structural coloration. During vibration texturing, pixelated patches of the gratings with various spacings can be created by dynamically modulating the nominal cutting velocity at each interval. Two types of optical systems were used to observe and record the structurally colored workpiece surfaces, after machining based on the different transparencies of silicon and acrylic. The silicon was measured in a reflection configuration, whereas the acrylic sample was characterized using a transmission setup. b, The surface morphology of generated grating on silicon. (Cutting condition: vibration frequency of 2 kHz, nominal cutting velocity = 2–8 mm/s corresponding to feature spacings of 0.75–4 μm). c, The image rendering results of a horse, a rooster, and digits with an illumination angle of 45° (red scale bars = 0.5 mm, pixel size = 20 × 20 μm). d, The structural coloration results on acrylic (pixel size = 20 × 20 μm, illumination angle of 45°).
Credit
by Jianjian Wang, Yaoke Wang, Jianfu Zhang, Yang Yang, Ping Guo
Usage Restrictions
Credit must be given to the creator.
License
CC BY