Visible laser microfabrication of transparent plastic using Au nanoparticles-dispersed polymer film |
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| Authors: | Hiromasa Yagyu |
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| Affiliation: | 1. Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan;2. Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, 44 Wenhua Xilu, Jinan, Shandong 250012, PR China;1. Dipartimento di Chimica Industriale “Toso Montanari”, Alma Mater Studiorum–Università di Bologna, Viale Risorgimento 4, 40136, Bologna, Italy;2. Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany;1. Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Section 4, Keelung Road, Taipei 106, Taiwan;2. Department of Applied Chemistry, National University of Kaohsiung, Kaohsiung 81148, Taiwan;3. Department of Chemical and Materials Engineering, Tamkang University, New Taipei 25137, Taiwan;4. Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan;1. College of Chemical and Biological Engineering, Hezhou University, Hezhou 542800, China;2. Department of Chemistry, Payame Noor University, Abhar, Zanjan, Islamic Republic of Iran;3. Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Islamic Republic of Iran |
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| Abstract: | A polymer film in which Au nanoparticles with average diameter of around 3 nm dispersed in ethylcellulose was applied to an absorber for laser microfabrication of a transparent plastic. Since the polymer film has a strong absorption at the wavelength of around 530 nm, it can be micromachined using focused low power Nd:YVO4–SHG laser (CW, wavelength of 532 nm). When laser beam was irradiated on the polymer film coated on transparent substrate, the substrate under the polymer film which has no absorbance in the range of wavelength of laser beam was processed. A micropattern was clearly fabricated on transparent poly(methyl methacrylate) and polyethylene terephthalate using our polymer film. In poly(methyl methacrylate) substrate, the processed depth showed a maximum at the polymer film thickness of 15 μm under the condition of laser power of 23 mW. Finally, laser marking test on the transparent poly(methyl methacrylate) was demonstrated as an application of our system using the optimal polymer film thickness. |
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