Unconventional Laser Chemistry. Laser-Induced Chemical Fabrication of Micromachine Materials.

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  • MISAWA Hiroaki
    Department of Mechanical Engineering, Faculty of Engineering, University of Tokushima

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  • 新しいレーザー化学　マイクロマシン材料のレーザー化学加工
  • マイクロマシン ザイリョウ ノ レーザーカガク カコウ

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Abstract

Laser manipulation-microfabrication system consisting of a CW laser, a picosecond pulsed laser and an optical microscope was developed to assemble micrometer-sized structure in solution. Photopolymerization of reactive monomers induced at the focal spot of picosecond laser pulses (λ = 355 nm or 532 nm, FWHM = 30 ps, repetation rate = 10 Hz) was employed for connection of glass particles regularly aligned by laser trapping. Since photopolymerization was induced in the vicinity of a focal spot, any desired numbers of glass particles with arbitrary geometrical structure can be connected by repeating the manipulation and the photopolymerization procedures.

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