期刊
JOURNAL OF THE OPTICAL SOCIETY OF KOREA
卷 12, 期 1, 页码 38-41出版社
OPTICAL SOC KOREA
DOI: 10.3807/JOSK.2008.12.1.038
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Precise micropatterning of polypropylene film, which is highly transparent in the wavelength range over 250 nm has been demonstrated by 355 nm nano/picosecond laser and 785 nm femto-second laser. Increments of both the pulse energy and the shot number of pulses lead to co-occurrence of photochemical and thermal effects, demonstrated by the spatial expansion of rim on the surface of PP. The shapes of the laser-ablated polypropylene films were imaged by optical microscope and measured by a 3D optical measurement system. And, the ablation depth and width of polypropylene film ablated by femtosecond laser at various pulse energy and pulse number were characterized. Our results demonstrate that a femtosecond pulsed laser is an efficient tool for fabricating micropatterns of polypropylene films, where the micropatterns are specifically tailored in size, location and number easily controlled by laser processing conditions.
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