Surface nanopatterning of Al/Ti multilayer thin films and Al single layer by a low-fluence UV femtosecond laser beam

Kovačević, A.; Petrović, Suzana; Bokic, Bojana; Gaković, B.; Bokorov, Miloš; Vasić, Borislav; Gajić, Radoš; Trtica, M.; Jelenković, Branislav

doi:10.1016/j.apsusc.2014.10.180

Cited by 24 publications

(13 citation statements)

References 37 publications

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“…Existing theoretical investigations of the electron dynamics at laser-irradiated materials does not yet include laser scanning 16 due to complexity of involved interrelated processes, that should be overcome in the incoming years. Large body of investigations reveal that the quality of nanostructures imprinted on surfaces of various kind depends on involved mechanisms and the processes such as surface melting 17 , ablation 7 , and oxidation 18 , all originating from an initial periodic modulation of the deposited electromagnetic energy over the irradiated surface. It has been found that laser-induced oxidation 18 and partial melting 17 allow to obtain a very good regularity in the induced pattern in cases of thin-film configurations, typically higher than for LIPSS generated in the ablation regime.…”

Section: Introductionmentioning

confidence: 99%

“…Large body of investigations reveal that the quality of nanostructures imprinted on surfaces of various kind depends on involved mechanisms and the processes such as surface melting 17 , ablation 7 , and oxidation 18 , all originating from an initial periodic modulation of the deposited electromagnetic energy over the irradiated surface. It has been found that laser-induced oxidation 18 and partial melting 17 allow to obtain a very good regularity in the induced pattern in cases of thin-film configurations, typically higher than for LIPSS generated in the ablation regime. Interestingly, adding of only 3% of second harmonic energy to that of the fundamental (800 nm) wavelength can improve nanostructuring quality 19 .…”

Section: Introductionmentioning

confidence: 99%

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High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

Gnilitskyi

Derrien

Lévy

et al. 2017

Sci Rep

286

179

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Highly regular laser-induced periodic surface structures (HR-LIPSS) have been fabricated on surfaces of Mo, steel alloy and Ti at a record processing speed on large areas and with a record regularity in the obtained sub-wavelength structures. The physical mechanisms governing LIPSS regularity are identified and linked with the decay length (i.e. the mean free path) of the excited surface electromagnetic waves (SEWs). The dispersion of the LIPSS orientation angle well correlates with the SEWs decay length: the shorter this length, the more regular are the LIPSS. A material dependent criterion for obtaining HR-LIPSS is proposed for a large variety of metallic materials. It has been found that decreasing the spot size close to the SEW decay length is a key for covering several cm2 of material surface by HR-LIPSS in a few seconds. Theoretical predictions suggest that reducing the laser wavelength can provide the possibility of HR-LIPSS production on principally any metal. This new achievement in the unprecedented level of control over the laser-induced periodic structure formation makes this laser-writing technology to be flexible, robust and, hence, highly competitive for advanced industrial applications based on surface nanostructuring.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

Gnilitskyi

Derrien

Lévy

et al. 2017

Sci Rep

286

179

View full text Add to dashboard Cite

show abstract

“…A clear distinction in the maxima indicates that LIPSS are highly regular, due to the multi-layer structure. By the convenient combination of the materials, the existence of the underneath layer produces a steep change in the layers' temperatures and enables the transfer of thermal energy through the interface and away from the interaction zone [11].…”

Section: Resultsmentioning

confidence: 99%

“…2020, 10, x FOR PEER REVIEW 4 of 10 maxima indicates that LIPSS are highly regular, due to the multi-layer structure. By the convenient combination of the materials, the existence of the underneath layer produces a steep change in the layers' temperatures and enables the transfer of thermal energy through the interface and away from the interaction zone [11]. The interaction of fs beam with multilayer thin film materials induces the intermixing of initially separated layers, which could be attributed to the alloying between the components [29].…”

Section: Resultsmentioning

confidence: 99%

“…The causes of LIPSS generation and shaping are seen most probably in the emergence of the surface plasmon polariton (SPP), as well as in the hydrodynamic features [8][9][10]. If compared to single layer metal films, more regular LIPSS are generated with low-fluence femtosecond (fs) laser beam interaction with multilayer thin metal films, since the existence of the metal sublayer influences the quality and stability of LIPSS [11].…”

Section: Introductionmentioning

confidence: 99%

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Molding Wetting by Laser-Induced Nanostructures

et al. 2020

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The influence of material characteristics—i.e., type or surface texture—to wetting properties is nowadays increased by the implementation of ultrafast lasers for nanostructuring. In this account, we exposed multilayer thin metal film samples of different materials to a femtosecond laser beam at a 1030 nm wavelength. The interaction generated high-quality laser-induced periodic surface structures (LIPSS) of spatial periods between 740 and 790 nm and with maximal average corrugation height below 100 nm. The contact angle (CA) values of the water droplets on the surface were estimated and the values between unmodified and modified samples were compared. Even though the laser interaction changed both the surface morphology and the chemical composition, the wetting properties were predominantly influenced by the small change in morphology causing the increase in the contact angle of ~80%, which could not be explained classically. The influence of both surface corrugation and chemical composition to the wetting properties has been thoroughly investigated, discussed and explained. The presented results clearly confirm that femtosecond patterning can be used to mold wetting properties.

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Laser Writing of Multilayer Structural Colors for Full‐Color Marking on Steel

Zhang,

Wang,

Wang

et al. 2023

Advanced Photonics Research

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Laser‐induced periodic surface structure (LIPSS) can form structural color on the metal surfaces with high production efficiency and thermal stability, and has been used in various industrial applications such as unfaded color marking and anti‐counterfeiting. Herein, a novel fabrication scheme of multilayer LIPSS is proposed by multiple writing in situ with changing the laser polarization direction, to exhibit an effect of color superposition. To verify this approach, the color formation mechanism of LIPSS on the stainless‐steel surface is analyzed by finite‐element numerical calculation and reveals that the high‐angular dispersion of LIPSS is mainly the result of optical diffraction occurring on the surface of periodic structures. The relationship between the angular dispersion of multilayer LIPSS and laser‐processing parameters is established. Through the proposed multilayer LIPSS coloring technology, vivid full‐color patterns on the steel surface are demonstrated, and the in situ superposition of three‐layer graphs is realized, which can greatly enrich the color levels and be competitive in industrial applications.

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Surface nanopatterning of Al/Ti multilayer thin films and Al single layer by a low-fluence UV femtosecond laser beam

Cited by 24 publications

References 37 publications

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

Molding Wetting by Laser-Induced Nanostructures

Laser Writing of Multilayer Structural Colors for Full‐Color Marking on Steel

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