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Appl. Sci. 2018, 8(1), 112;

The Effect of Laser Pulse Widths on Laser—Ag Nanoparticle Interaction: Femto- to Nanosecond Lasers

Department of Laser & Electron Beam Application, Korea Institute of Machinery & Materials, Daejeon 34103, S. Korea
Department of Mechanical Engineering, Seoul National University of Science and Technology, Seoul 01811, S. Korea
Department of Mechanical and Automotive Engineering, Keimyung University, Daegu 42601, S. Korea
Department of Material Science Engineering, the Ohio State University, Columbus, OH 43210, USA
Department of Nano-Mechatronics, Korea University of Science & Technology, Daejeon 34113, S. Korea
Author to whom correspondence should be addressed.
Received: 14 December 2017 / Revised: 9 January 2018 / Accepted: 11 January 2018 / Published: 14 January 2018
(This article belongs to the Special Issue Printed Electronics 2017)
Full-Text   |   PDF [2736 KB, uploaded 14 January 2018]   |  


The effect of the laser pulse width on the production of nanoparticles by laser fragmentation was investigated. Laser pulse widths of 164 fs, 5 ps, 4 ns, 36 ns, 64 ns, and 100 ns were used. To assess the effect of the laser pulse width on the energy distribution in the nanoparticles, the energy distribution was simulated using wave optics. Silver (Ag) nanoparticles were produced by laser irradiation of an Ag target in distilled water. The wavelength of the femtosecond, picosecond, and nanosecond lasers used was 1070 nm, and their fluences were 0.10–0.13 mJ/cm2. Nanoparticle microstructure was visualized by transmission electron microscopy and scanning electron microscopy, and the nanoparticle size distribution was evaluated using a particle size analyzer. View Full-Text
Keywords: laser fragmentation; laser pulse width; nanoparticles laser fragmentation; laser pulse width; nanoparticles

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Jeon, J.-W.; Yoon, S.; Choi, H.W.; Kim, J.; Farson, D.; Cho, S.-H. The Effect of Laser Pulse Widths on Laser—Ag Nanoparticle Interaction: Femto- to Nanosecond Lasers. Appl. Sci. 2018, 8, 112.

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