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Colorizing stainless steel surface by femtosecond laser induced micro/nano-structures |
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| Authors: | Md Shamim Ahsan Farid Ahmed |
| Institution: | a Photonics Application Lab, Korea Advanced Institute of Science and Technology (KAIST), 335 Gwahak-ro, Yuseong-gu, Daejeon 305-701, South Korea b Electronics and Communication Engineering Discipline, School of Science, Engineering and Technology, Khulna University, Khulna 9208, Bangladesh c Laboratory for Advanced Multi-scale Manufacturing, Department of Mechanical Engineering, University of Victoria, Victoria, PO Box 3055 STN CSC, Victoria, British Columbia, Canada V8W 3P6 |
| Abstract: | We demonstrate colorizing of stainless steel surfaces by femtosecond laser induced periodic microholes and micro/nano-gratings on sample surfaces. Suitable adjustment of laser induced features on stainless steel surfaces offer a variety of colors, including multi-color, gold, and black. We also report that multi-color metal surfaces exhibit diverse colors when they are exposed to the incident light of different incident and azimuthal angles. Finally, we briefly explain how the femtosecond laser induced micro/nano scale features introduce different colors on stainless steel surfaces. |
| Keywords: | Femtosecond laser Self-organized nanograting Microhole Micrograting Nanostructure Incident angle Azimuthal angle |
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