Advanced Surface Colorization of Stainless Steel through Pixel-Level Color Blending with Nanosecond Pulsed Laser Excitation

Chia-Hung Chou^1*, Hung-Wen Chen^1,2

¹Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan
²International Intercollegiate Ph.D. Program, National Tsing Hua University, Hsinchu, Taiwan

* Presenter:Chia-Hung Chou, email:peterchou.chiahung@gmail.com

We introduce an innovative laser coloring method for stainless steel (SUS304) by utilizing non-overlapping subpixels within a single pixel to achieve intricate color blending. Unlike conventional methods reliant on laser parameter adjustments, our approach enables the creation of intermediate colors between selected hues. Our results showcase a striking two-color gradient transition, expanding artistic possibilities for laser coloring.

Keywords: Laser Colorization, Pixel-level Color Blending, Environmental sustainability