Colorizing mechanism of brass surface by femtosecond laser induced microstructures |
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Authors: | Md. Shamim Ahsan Man Seop Lee |
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Affiliation: | 1. Photonics Application Lab, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro (373-1 Guseong-dong), Yuseong-gu, Daejeon 305-701, Republic of Korea;2. Electronics and Communication Engineering Discipline, School of Science, Engineering, and Technology, Khulna University, Khulna 9208, Bangladesh |
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Abstract: | In this paper, we exhibit the colorizing of brass surfaces by forming femtosecond laser induced microstructures on the sample surfaces. A variety of single colors such as brown, yellow, green, and black are introduced on brass surfaces by engineering periodic microgratings, microholes, and ring-shaped micro-patterns using Single Beam Direct Laser Writing (SBDLW) technique. The color of the micro-structured brass surfaces is certainly dependent on the width, depth, and period of the microstructures. Finally, we explain, in brief, the colorizing mechanism of metals by femtosecond laser induced microstructures. |
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Keywords: | Femtosecond laser Metal colorizing Micrograting Microhole Ring-shaped micro-pattern |
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