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Laser-induced plasmonic colours on metals

Author

Listed:
  • Jean-Michel Guay

    (University of Ottawa
    Centre for Research in Photonics, University of Ottawa)

  • Antonino Calà Lesina

    (University of Ottawa
    Centre for Research in Photonics, University of Ottawa)

  • Guillaume Côté

    (University of Ottawa
    Centre for Research in Photonics, University of Ottawa)

  • Martin Charron

    (University of Ottawa)

  • Daniel Poitras

    (Information and Communication Technologies Portfolio, National Research Council of Canada, 1200 Montreal Rd. Building M-50)

  • Lora Ramunno

    (University of Ottawa
    Centre for Research in Photonics, University of Ottawa)

  • Pierre Berini

    (University of Ottawa
    Centre for Research in Photonics, University of Ottawa
    School of Electrical Engineering and Computer Science, University of Ottawa)

  • Arnaud Weck

    (University of Ottawa
    Centre for Research in Photonics, University of Ottawa
    University of Ottawa)

Abstract

Plasmonic resonances in metallic nanoparticles have been used since antiquity to colour glasses. The use of metal nanostructures for surface colourization has attracted considerable interest following recent developments in plasmonics. However, current top-down colourization methods are not ideally suited to large-scale industrial applications. Here we use a bottom-up approach where picosecond laser pulses can produce a full palette of non-iridescent colours on silver, gold, copper and aluminium. We demonstrate the process on silver coins weighing up to 5 kg and bearing large topographic variations (∼1.5 cm). We find that colours are related to a single parameter, the total accumulated fluence, making the process suitable for high-throughput industrial applications. Statistical image analyses of laser-irradiated surfaces reveal various nanoparticle size distributions. Large-scale finite-difference time-domain computations based on these nanoparticle distributions reproduce trends seen in reflectance measurements, and demonstrate the key role of plasmonic resonances in colour formation.

Suggested Citation

  • Jean-Michel Guay & Antonino Calà Lesina & Guillaume Côté & Martin Charron & Daniel Poitras & Lora Ramunno & Pierre Berini & Arnaud Weck, 2017. "Laser-induced plasmonic colours on metals," Nature Communications, Nature, vol. 8(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms16095
    DOI: 10.1038/ncomms16095
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    Cited by:

    1. Jiao Geng & Liye Xu & Wei Yan & Liping Shi & Min Qiu, 2023. "High-speed laser writing of structural colors for full-color inkless printing," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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