Results 31 to 40 of about 11,655,661 (190)

High-Resolution Laser Interference Ablation and Amorphization of Silicon

open access: yesNanomaterials, 2023
The laser interference patterning of a silicon surface via UV femtosecond pulse irradiation, resulting in 350 nm periodic structures, is demonstrated. The structuring process was performed using a laser with a 450 fs pulse duration at a wavelength of 248
Andreas Blumenstein   +2 more
doaj   +1 more source

Enhanced Absorptance of 45# Steel by Laser-Induced Periodic Surface Structures (LIPSS) [PDF]

open access: yesMetals, 2020
The absorptance of metals is often low within the visible and near-infrared band at room temperature. Increasing the absorption of metals plays a vital role in reducing energy consumption and production cost. After irradiation by 10 ns linearly polarized pulses with fluence close to the zero-probability damage threshold, the surface of 45# steel ...
Tianyu Wang   +6 more
openaire   +2 more sources

Method for fabrication of laser-induced periodic surface structures on vascular stents

open access: yesCurrent Directions in Biomedical Engineering, 2023
Laser-induced periodic surface structures (LIPSS) provide the possibility to functionalize the surface of various materials, which can be used to control the wettability of metal surfaces or influence cell adhesion.
Grossmann Swen   +4 more
doaj   +1 more source

Preferential Growth of ZnO Micro- and Nanostructure Assemblies on Fs-Laser-Induced Periodic Structures

open access: yesNanomaterials, 2020
In this work, we demonstrate the use of laser-induced periodic surface structures (LIPSS) as templates for the selective growth of ordered micro- and nanostructures of ZnO.
Belén Sotillo   +4 more
doaj   +1 more source

Laser-induced periodic surface structures as optical resonators for organic thin-film distributed feedback lasers [PDF]

open access: yesEPJ Web of Conferences, 2023
Laser-induced periodic surface structures (LIPSS) have received considerable attention due to their potential for micro-and nanostructuring and surface functionalization of various materials.
Dong Tiange   +5 more
doaj   +1 more source

Laser fluence-dependent LIPSS formed on the surface of niobium alloys [PDF]

open access: yesEPJ Web of Conferences
Laser fluence-dependent laser-induced periodic surface structures (LIPSS) on niobium alloys was analysed. Additionally, we explored the shift from LIPSS to self-organized, periodic microstructures resembling cones.
Vapaev Murodbek E.   +5 more
doaj   +1 more source

A practical technique for the generation of highly uniform LIPSS [PDF]

open access: yes, 2014
Laser-induced periodic surface structures (LIPSS) can be reliably produced with ultrashort (<10 ps) laser pulses given fluence near the ablation threshold. Neat, parallel, uniform structures are harder to reproduce.
Weston, Nick   +3 more
core   +1 more source

Investigation of Laser-Induced Periodic Surface Structures Using Synthetic Optical Holography

open access: yesNanomaterials, 2022
In this paper, the investigation of laser-induced periodic surface structures (LIPSSs) on a polycrystalline diamond substrate using synthetic optical holography (SOH) is demonstrated.
Krisztian Neutsch   +3 more
doaj   +1 more source

Reduction of Friction of Metals Using Laser-Induced Periodic Surface Nanostructures

open access: yesMicromachines, 2015
We report on the effect of femtosecond-laser-induced periodic surface structures (LIPSS) on the tribological properties of stainless steel. Uniform periodic nanostructures were produced on AISI 304L (American Iron and Steel Institute steel grade) steel ...
Zhuo Wang, Quanzhong Zhao, Chengwei Wang
doaj   +1 more source

Formation of Nano- and Micro-Scale Surface Features Induced by Long-Range Femtosecond Filament Laser Ablation

open access: yesNanomaterials, 2022
In this work, we study the characteristics of femtosecond-filament-laser–matter interactions and laser-induced periodic surface structures (LIPSS) at a beam-propagation distance up to 55 m.
Joerg Schille   +6 more
doaj   +1 more source

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