F[sub]2[/sub] laser formation of SiO[sub]2[/sub] protective layer onto polycarbonate for lightweight vehicle window

Shingo Sonobe; Yoshihiko Nojima; Masayuki Okoshi; Hidetoshi Nojiri; Narumi Inoue

doi:10.1117/12.878450

21 February 2011 F₂ laser formation of SiO₂ protective layer onto polycarbonate for lightweight vehicle window

Shingo Sonobe, Yoshihiko Nojima, Masayuki Okoshi, Hidetoshi Nojiri, Narumi Inoue

Proceedings Volume 7920, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XVI; 79201A (2011) https://doi.org/10.1117/12.878450
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

Silicone-coated polycarbonate (PC) through an acrylic primer was photochemically modified into silica (SiO₂) by 157 nm F₂ laser. The photomodified surface showed high scratch resistance comparable to the case in a bulk silica. Corresponding to the conversion of silicone into silica on PC, the photomodified surface was found to be shrunk, measured by a surface profilometer. For instance, the coated silicone on PC reduced the thickness of approximately 15 % when the F₂ laser modified silicone into silica 0.59 μin thickness. An excess irradiation of F₂ laser for the photochemical modification induced the degradation of acrylic primer underneath silicone.

Citation Download Citation

Shingo Sonobe, Yoshihiko Nojima, Masayuki Okoshi, Hidetoshi Nojiri, and Narumi Inoue "F₂ laser formation of SiO₂ protective layer onto polycarbonate for lightweight vehicle window", Proc. SPIE 7920, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XVI, 79201A (21 February 2011); https://doi.org/10.1117/12.878450

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