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Proceedings Paper

Which period ripples will form on the ablated surface: subwavelength or deep-subwavelength?
Author(s): Tomas Katkus; Denver P. Linklater; Simonas Varapnickas; Stefan Lundgaard; Soon Hock Ng; Simon E. Moulton; Pierre-Louis de Assis; Stanislav Moshkalev; Mangirdas Malinauskas; Saulius Juodkazis
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Paper Abstract

Nano-texturing of surface by self-organised ablation ripples as well as modifications of internal volume of materials, transparent at the wavelength of laser irradiation, is gaining interest due to simplicity of direct laser writing/printing. With ultra-short laser pulses (τp < 1 ps) a wider range of structuring morphologies is accessible, namely, sub-wavelength ripples. The surface wave formed on the plasma-dielectric (air or substrate) explains difference of the formed pattern. These corresponding front- and back-side (in respect to the incoming laser beam) modes of laser structuring accounts for the ripple formation inside transparent materials, where a skin-layer plasma is formed. Emerging applications of nano-textured surfaces for bio-medical field are discussed.

Paper Details

Date Published: 19 February 2018
PDF: 6 pages
Proc. SPIE 10522, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVIII, 105220U (19 February 2018); doi: 10.1117/12.2300731
Show Author Affiliations
Tomas Katkus, Swinburne Univ. of Technology (Australia)
Denver P. Linklater, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Simonas Varapnickas, Vilnius Univ. (Lithuania)
Stefan Lundgaard, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Soon Hock Ng, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Simon E. Moulton, Swinburne Univ. of Technology (Australia)
Pierre-Louis de Assis, State Univ. of Campinas (Brazil)
Stanislav Moshkalev, State Univ. of Campinas (Brazil)
Mangirdas Malinauskas, Vilnius Univ. (Lithuania)
Saulius Juodkazis, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)


Published in SPIE Proceedings Vol. 10522:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVIII
Peter R. Herman; Michel Meunier; Roberto Osellame, Editor(s)

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