Results 241 to 250 of about 4,898,176 (272)

Direct laser interference patterning combined with mask imaging

Optics & Laser Technology, 2020
Abstract Direct laser interference patterning (DLIP) is a one step process to produce customized textured surfaces on the micrometer scale. Depending on the laser system, achieving a large area homogeneous pattern can be challenging. Particularly, with nanosecond lasers, an irregular intensity distribution or superposition leads to uneven melting ...
Björn Lechthaler, Tobias Fox, Sebastian Slawik, Frank Mücklich   +3 more
openaire   +1 more source

To use or not to use (direct laser interference patterning), that is the question

SPIE Proceedings, 2015
Direct Laser Interference Patterning (DLIP) has shown to be a fabrication technology capable of producing large area periodic surface patterns on almost any kind of material. The produced structures have been used in the past to provide surfaces with new enhanced properties.
A. F. Lasagni, T. Roch, J. Berger, T. Kunze, V. Lang, E. Beyer   +5 more
openaire   +1 more source

Plasmonic nanostructuring through direct laser interference patterning

SPIE Proceedings, 2014
Direct writing of plasmonic nanostructures is demonstrated by nanoscale-tensile-stress induced patterning through interference crosslinking in a polymer film and by single-pulse interference ablation of a gold film. Nanoscale-tensilestress from the interference crosslinking of polymer films which are exposed to the interference pattern of UV laser ...
Yuanhai Lin, Tianrui Zhai, Xinping Zhang
openaire   +1 more source

Direct Laser Interference Patterning of Graphene in Contact Lenses

Advanced Engineering Materials
This study explores a cost‐effective method for creating nanostructures on contact lenses (CLs) as potential wearable sensors. Using direct laser interference patterning, commercially available CLs are coated with graphene ink and ablated with a neodymium‐doped yttrium aluminum garnet laser at 30 mJ pulse energy and various tilt angles.
Hibah Shafeekali, Muhammed Shebeeb C, Murad Ali, Sanjana Chandran, Abdulrahim A. Sajini, Haider Butt   +5 more
openaire   +1 more source

Periodic patterning of silicon by direct nanosecond laser interference ablation

Applied Surface Science, 2011
Abstract The production of periodic structures in silicon wafers by four-beam is presented. Because laser interference ablation is a single-step and cost-effective process, there is a great technological interest in the fabrication of these structures for their use as antireflection surfaces.
T. Tavera, N. Pérez, A. Rodríguez, P. Yurrita, S.M. Olaizola, E. Castaño   +5 more
openaire   +1 more source

Direct laser interference patterning of ophthalmic polydimethylsiloxane (PDMS) polymers

Optics and Lasers in Engineering, 2018
Dr. Daniel Sola thanks the Ministry of Economy and Competitiveness of the State General Administration under the project MINECO FIS2013-41237-R and the PIT2 program of the University of Murcia´s own research plan for the financial support of his contract.
Sola, D., Lavieja, Cristian, Orera, Alodia, Clemente, María J.   +3 more
openaire   +2 more sources

Direct Fabrication of Hierarchical Microstructures on Metals by Means of Direct Laser Interference Patterning

Journal of Engineering Materials and Technology, 2010
We have studied the fabrication of hierarchical periodic microstructures on metals by means of direct laser interference patterning. A nanosecond pulsed Nd:YAG laser at 355 nm wavelength was used to produce the microstructures with grating periods ranging from 1 μm to 10 μm on stainless steel, titanium, and aluminum.
Matthias Bieda, Eckhard Beyer, Andrés F. Lasagni   +2 more
openaire   +1 more source

Fabrication of Hierarchical Micro Patterns on PET Substrates Using Direct Laser Interference Patterning

Advanced Engineering Materials, 2016
Hierarchical microstructures offer improved surface functionalities or a combination of surface properties compared to single‐scale patterns, e.g., low reflectivity and hydrophobicity. The fabrication of three‐level length‐scales microstructures on polyethylene terephthalate (PET) substrates is demonstrated using UV nanosecond‐pulsed direct laser ...
Florian Rößler, Denise Günther, Andrés Fabián Lasagni   +2 more
openaire   +1 more source

Direct Laser Interference Patterning of Nickel Molds for Hot Embossing of Polymers

Advanced Engineering Materials, 2016
In this study, the authors present a single‐step approach for fabricating micrometer structures on metallic hot embossing molds using direct laser interference patterning. Patterns with spatial periods of 1.8 and 2.5 µm are structured on a Ni‐mold and used for embossing PET‐foils.
Andreas Rank, Tim Kunze, Tina Hoffmann, Andrés F. Lasagni   +3 more
openaire   +1 more source

Fabrication of hierarchical microstructures on metals by means of direct laser interference patterning

ICALEO 2010: 29th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2010
We have studied the fabrication of hierarchical periodic microstructures on metals by means of Direct Laser Interference Patterning. A nanosecond pulsed Nd:YAG laser at 355 nm wavelength was used to produce the microstructures with grating periods ranging from 1 to 10 µm on stainless steel, titanium and aluminium.
Matthias Bieda, Andrés F. Lasagni, Eckhard Beyer   +2 more
openaire   +1 more source