Springtail-inspired triangular laser-induced surface textures on metals using MHz ultrashort pulses

Jean Michel Romano; Ralf Helbig; Fotis Fraggelakis; Antonio Garcia-Giron; Carsten Werner; Rainer Kling; Stefan Dimov

doi:10.1115/1.4043417

Springtail-inspired triangular laser-induced surface textures on metals using MHz ultrashort pulses

Jean Michel Romano^*, Ralf Helbig, Fotis Fraggelakis, Antonio Garcia-Giron, Carsten Werner, Rainer Kling, Stefan Dimov

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

234 Downloads (Pure)

Abstract

Considering the attractive surface functionalities of springtails (Collembola), an attempt at mimicking their cuticular topography on metals is proposed. An efficient single-step manufacturing process has been considered, involving Laser-Induced Periodic Surface Structures (LIPSS) generated by near-infrared femtosecond laser pulses. By investigating the influence of number of pulses and pulse fluence, extraordinarily uniform triangular structures were fabricated on stainless steel and titanium alloy surfaces, resembling the primary comb-like surface structure of springtails. The laser-textured metallic surfaces exhibited hydrophobic properties and light scattering effects that were considered in this research as a potential in-line process monitoring solution. The possibilities to increase the processing throughput by employing high repetition rates in the MHz-range are also investigated.

Original language	English
Article number	024504
Journal	Journal of Micro and Nano-Manufacturing
Volume	7
Issue number	2
DOIs	https://doi.org/10.1115/1.4043417 https://doi.org/10.1115/1.4043417
Publication status	Published - 25 Jul 2019

Bibliographical note

Funding Information:
The work was carried out within the H2020 “European ESRs Network on Short Pulsed Laser Micro/Nanostructuring of Surfaces for Improved Functional Applications” (Laser4Fun) under the ITN Marie Skłodowska-Curie grant agreement No. 6750631, the H2020 FoF program “High-Impact Injection Moulding Platform for mass-production of 3D and/or large micro-structured surfaces with Antimicrobial, Self-cleaning, Anti-scratch, Anti-squeak and Aesthetic functionalities” (HIMALAIA) and of the UKIERI DST program “Surface functionalisation for food, packaging, and healthcare applications.” The authors greatfully acknowledge Christoph Nein-huis for the permission of collecting specimen of Sinella tenebri-cosa, a non endangered or protected species, from the tropical greenhouse of the Dresden Botanical Garden, Germany.

Publisher Copyright:
Copyright © 2019 by ASME.

Keywords

Biomimicry
Light scattering
LIPSS
MHz processing
Uniformity
Wettability

ASJC Scopus subject areas

Mechanics of Materials
Process Chemistry and Technology
Industrial and Manufacturing Engineering

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2019_Springtail_inspired_triangular_laser_induced_surface_textures_on_metals_using_MHz_ultrashort_pulses_FINALAccepted author manuscript, 1.61 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

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abstract = "Considering the attractive surface functionalities of springtails (Collembola), an attempt at mimicking their cuticular topography on metals is proposed. An efficient single-step manufacturing process has been considered, involving Laser-Induced Periodic Surface Structures (LIPSS) generated by near-infrared femtosecond laser pulses. By investigating the influence of number of pulses and pulse fluence, extraordinarily uniform triangular structures were fabricated on stainless steel and titanium alloy surfaces, resembling the primary comb-like surface structure of springtails. The laser-textured metallic surfaces exhibited hydrophobic properties and light scattering effects that were considered in this research as a potential in-line process monitoring solution. The possibilities to increase the processing throughput by employing high repetition rates in the MHz-range are also investigated.",

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Springtail-inspired triangular laser-induced surface textures on metals using MHz ultrashort pulses

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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