Sequential color change on copper surfaces via micro/nano structure modification induced by a picosecond laser

P.X. Fan, M.L. Zhong, L. Li, P. Schmitz, C. Lin, J.Y. Long, H.J. Zhang

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A surface micro/nano structuring technique was demonstrated for colorizing metal surfaces with a picosecond laser. Sequential color change from black to pink was realized on copper surfaces by simply changing the ps laser scanning speeds. Systematic analyses on the spectral response and microstructure characteristics were reported. The spectrum shifting effect corresponding to color change was explained through the surface plasmon resonance mechanism. The current research shows that a high power and high repetition rate ps laser is capable of structuring metal surfaces with a speed up to several meters per second, presenting an efficient and affordable candidate for practical industrial applications. (C) 2013 AIP Publishing LLC.
    Original languageEnglish
    Article number083518
    JournalJournal of Applied Physics
    Volume114
    Issue number8
    DOIs
    Publication statusPublished - 28 Aug 2013

    Keywords

    • NANOSPHERE LITHOGRAPHY; TEXTURED SURFACES; FEMTOSECOND; TITANIUM; MARKING; PULSES; METAL

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