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Large Area One‐Step Fabrication of Three‐Level Multiple‐Scaled Micro and Nanostructured Nickel Sleeves for Roll‐to‐Roll Hot Embossing
Author(s) -
Lang Valentin,
Rank Andreas,
Lasagni Andrés F.
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201700126
Subject(s) - materials science , fabrication , embossing , laser , picosecond , microstructure , nickel , optics , wavelength , optoelectronics , roll to roll processing , interference (communication) , composite material , metallurgy , medicine , channel (broadcasting) , alternative medicine , physics , electrical engineering , pathology , engineering
Direct laser interference patterning enabled the fabrication of three level multiple‐scaled microstructures on nickel surfaces using infrared picosecond laser pulses. While the largest spatial period (1.5 to 5.7 µm) could be controlled by adjusting the angle between the interfering laser beams and the laser wavelength, low and high spatial frequency laser induced periodic surface structures with pitches of approximately 800 nm and 160 nm, respectively, were also observed. Using a set of optimized processing parameters, large area Ni‐sleeves were treated. These sleeves were later employed in preliminarily investigations of roll‐to‐roll high throughput hot‐embossing of polymer foils.