Laser-induced Periodic Surface Structures (LIPSS) on polymers processed with picosecond laser pulses

    Research output: Contribution to conferencePaperAcademic

    Abstract

    Based on a literature review, it was concluded that Laser-induced Periodic Surface Structures (LIPSS) on polymers are produced when applying laser sources operating either in the ultraviolet wavelength and nanosecond pulse duration, or radiation of wavelengths ranging from 265nm to 1045nm and pulse durations in the femtosecond regime. LIPSS were not reported when using picosecond laser sources. The purpose of this paper is to study whether (and if so which) LIPSS form on polymers when picosecond pulsed laser source is applied. Low Spatial Frequency LIPSS (LSFL) and High Spatial Frequency LIPSS (HSFL) have been obtained on polycarbonate and on polystyrene when applying picosecond laser pulses at a wavelength of 343nm on single spots and on processed lines. When using a wavelength of 515nm, LSFL and HSFL have been produced only on polycarbonate, but also led to porousness of the structured area.
    Original languageEnglish
    Number of pages10
    Publication statusPublished - Jun 2018
    Event19th International Symposium on Laser Precision Microfabrication 2018 - Heriot-Watt University, Edinburgh, United Kingdom
    Duration: 25 Jun 201828 Jun 2018
    Conference number: 19
    https://lpm2018.org/

    Conference

    Conference19th International Symposium on Laser Precision Microfabrication 2018
    Abbreviated titleLPM2018
    CountryUnited Kingdom
    CityEdinburgh
    Period25/06/1828/06/18
    Internet address

    Keywords

    • Laser-induced Periodic Surface Structures (LIPSS)
    • Low Spatial Frequency LIPSS (LSFL)
    • high spatial frequency LIPSS (HSFL)
    • Polycarbonate (PC)
    • Polystyrene (PS)
    • picosecond laser source

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