Results 31 to 40 of about 412 (119)

French-German colloquium “50 Years In The Light Of The Laser”

, 2010
Laser-induced periodic surface structures (LIPSS, ripples) are a universal phenomenon observed after laser-irradiation of solids. In strong absorbing materials and for linear polarized radiation, LIPSS with spatial periods L close to the laser wavelength
Bonse, Jörn, Pigeon, Florent, Colombier, Jean-Philippe, Garrelie, Florence, Krüger, J., Stoian, Razvan, Rosenfeld, A.   +6 more
core   +5 more sources

Omnidirectional iridescence via cylindrically-polarized femtosecond laser processing

Opto-Electronic Advances, 2020
We report the femtosecond (fs) laser fabrication of biomimetic omnidirectional iridescent metallic surfaces exhibiting efficient diffraction for practically any angle of light incidence. Such diffractive behavior is realized by means of multi-directional
Livakas Nikolaos, Skoulas Evangelos, Stratakis Emmanuel   +2 more
doaj   +1 more source

Triangular laser-induced submicron textures for functionalising stainless steel surfaces [PDF]

, 2018
Processing technologies that engineer surfaces with sub-micron topographies are of a growing interest to a range of optical, hydrophobic and microbiological applications.
Penchev, Pavel, Dimov, Stefan; id_orcid, Garcia Giron, Antonio, Antonio Garcia-Giron, Romano, Jean-Michel, Pavel Penchev, Jean-Michel Romano, Stefan Dimov   +7 more
core   +1 more source

Experimental study of fs-laser induced sub-100-nm periodic surface structures on titanium

, 2015
In this work the formation of laser-induced periodic surface structures (LIPSS) on a titanium surface upon irradiation by linearly polarized femtosecond (fs) laser pulses with a repetition rate of 1 kHz in air environment was studied experimentally ...
Assion, Andreas, Kudryashov, Sergey I., Ajami, Aliasghar, Makarov, Sergey V., Ganz, Thomas, Ionin, Andrey A., Nathala, Chandra S., Husinsky, Wolfgang   +7 more
core   +4 more sources

Ultrafast dynamics of femtosecond laser-induced high spatial frequency periodic structures on silicon surfaces

Opto-Electronic Science
Femtosecond laser-induced periodic surface structures (LIPSS) have been extensively studied over the past few decades. In particular, the period and groove width of high-spatial-frequency LIPSS (HSFL) is much smaller than the diffraction limit, making it
Ruozhong Han, Yuchan Zhang, Qilin Jiang, Long Chen, Kaiqiang Cao, Shian Zhang, Donghai Feng, Zhenrong Sun, Tianqing Jia   +8 more
doaj   +1 more source

Transient Laser‐Induced Periodic Surface Structures Revealed by Time‐Resolved EUV Diffuse Scattering

Laser &Photonics Reviews, EarlyView.
The study shows that femtosecond laser pulses generate transient, LIPSS‐like surface patterns at fluences far below the damage threshold. Time‐resolved extreme ultraviolet scattering captures reciprocal space features that form within a few picoseconds and vanish on sub‐nanosecond timescales.
Dmitriy Ksenzov, Flavio Capotondi, Alexei A. Maznev, Filippo Bencivenga, Dieter Engel, Daniele Fausti, Laura Foglia, Raphael Gruber, Nicolas Jaouen, Mathias Kläui, Ivaylo Nikolov, Matteo Pancaldi, Emanuele Pedersoli, Bastian Pfau, Christian Gutt   +14 more
wiley   +1 more source

Spatial Variability in Recent Phototroph Production in a Large, Fluvial Lake Driven by Local Land‐Use Changes (St. Lawrence River, Canada)

Freshwater Biology, Volume 71, Issue 9, September 2026.
ABSTRACT Increases in lake production and the abundance of cyanobacteria have been reported in many temperate freshwater systems, with their rise typically attributed to elevated nutrient influx or climate change. On the St. Lawrence River (SLR), recent evidence suggests that cyanobacterial abundances have increased since ca. 2000, although the precise
Katherine E. Moir, Cale A. C. Gushulak, Peter R. Leavitt, Isaac Armstrong, Jeffrey J. Ridal, Brian F. Cumming   +5 more
wiley   +1 more source

Direct Laser Interference Patterning of Nickel Foils for Enhanced Bubble Nucleation in Oxygen‐Oversaturated Environment

Advanced Energy and Sustainability Research, Volume 7, Issue 5, May 2026.
This study investigates the use of direct laser interference patterning (DLIP) to enhance oxygen bubble nucleation on nickel surfaces by creating periodic microstructures with controlled spatial periods and depths. The results demonstrate that smaller spatial periods (Λ) and deeper features significantly improve bubble density and detachment dynamics ...
Fabian Ränke, Julian Heinrich, Marcos Soldera, Karin Schwarzenberger, Kerstin Eckert, Robert Baumann, Andrés Fabián Lasagni   +6 more
wiley   +1 more source

Abrupt transition from wavelength structure to subwavelength structure in a single-crystal superalloy induced by femtosecond laser

, 2011
The abrupt transition from low-spatial-frequency laser-induced periodic surface structure (LSFL) to high-spatial-frequency laser-induced periodic surface structure (HSFL) in single-crystal superalloy CMSX-4 during femtosecond laser irradiation has been ...
Feng, Qiang, Wei Zhang, Qiang Feng, Cao, Lamei, Guanghua Cheng, Zhang, Wei, Wang, Fengping, Lamei Cao, Rongqing Hui, Hui, Rongqing, Cheng, Guanghua, Fengping Wang   +11 more
core   +1 more source

Single‐Pulse Nanomorphology Governs Laser‐Induced Periodic Surface Structure Formation on Metals

Laser &Photonics Reviews, Volume 20, Issue 2, 22 January 2026.
Ultrashort pulse ablation enables generation of self‐organized periodic structures, where evolving nanomorphology controls pulse‐to‐pulse feedback. In noble metals, nanospikes form after the first pulse and localize surface waves, preventing periodic field distributions and thus suppressing their formation.
Nicolas Thomae, Darshit Jangid, Maximilian Spellauge, Constanze Eulenkamp, Evgeny Gurevich, Christian Schwalb, Heinz P. Huber, David Redka   +7 more
wiley   +1 more source