Uploaded December 2024 | Updated September 2026, 3 weeks ago

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At Ping Guo's lab at Northwestern University, ultrasonic modulation cutting transforms metallic surfaces into vibrant works of art. By generating micro/nano-gratings, this innovative technique creates structural coloration, producing iridescent colors through periodic ripples on the surface.

https://pingguo.mech.northwestern.edu/projects/structural_coloration/