Results 1 to 10 of about 412 (119)

Femtosecond Laser-Induced Periodic Surface Structures on Different Tilted Metal Surfaces [PDF]

Nanomaterials, 2020
Laser-induced periodic surface structures (LIPSS) are used for the precision surface treatment of 3D components. However, with LIPSS, the non-normal incident angle between the irradiated laser beam and the specimen surface occurs. This study investigated
Chung-Wei Cheng
exaly   +5 more sources

Two-Dimensional Periodic Nanostructure Fabricated on Titanium by Femtosecond Green Laser [PDF]

Nanomaterials, 2020
Laser-induced periodic surface structures (LIPSS) is the sub-wavelength periodic nanostructure, which is generally generated by the femtosecond laser. There are two kinds of LIPSS, low spatial frequency LIPSS (LSFL) and high spatial LIPSS (HSFL), and the
Chung-Wei Cheng
exaly   +5 more sources

Extremely High-Quality Periodic Structures on ITO Film Efficiently Fabricated by Femtosecond Pulse Train Output from a Frequency-Doubled Fabry–Perot Cavity [PDF]

Nanomaterials, 2023
This study developed a novel frequency-doubled Fabry–Perot cavity method based on a femtosecond laser of 1030 nm, 190 fs, 1 mJ, and 1 kHz. The time interval (60–1000 ps) and attenuation ratio (0.5–0.9) between adjacent sub-pulses of the 515 nm pulse ...
Qilin Jiang, Yuchan Zhang, Yufeng Xu, Shian Zhang, Donghai Feng, Tianqing Jia, Zhenrong Sun, Jianrong Qiu   +7 more
doaj   +3 more sources

Influence of polarization angle on LIPSS formation and ablation efficiency in direct laser interference patterning of metals [PDF]

Scientific Reports
This study explores the influence of the polarization angle on the formation of Laser-Induced Periodic Surface Structures (LIPSS) during Direct Laser Interference Patterning (DLIP) and its impact on ablation efficiency in stainless steel and aluminum ...
Francisco Udo Marins Almeida, Bogdan Voisiat, Ignacio Tabares, Fabian Ränke, Andrés Fabián Lasagni   +4 more
doaj   +3 more sources

Fabrication of Biomimetic 2D Nanostructures through Irradiation of Stainless Steel Surfaces with Double Femtosecond Pulses [PDF]

Nanomaterials, 2022
Femtosecond laser induced changes on the topography of stainless steel with double pulses is investigated to reveal the role of parameters such as the fluence, the energy dose and the interpulse delay on the features of the produced patterns. Our results
Matina Vlahou, Fotis Fraggelakis, Phanee Manganas, George D. Tsibidis, Anthi Ranella, Emmanuel Stratakis   +5 more
doaj   +2 more sources

Influence of Periodic Non-Uniformities of Well-Structured Sapphire Surface by LIPSS on the Alignment of Nematic Liquid Crystal [PDF]

Nanomaterials, 2022
In this study, we report on the alignment properties of nematic liquid crystals on various transparent structured sapphire layers formed by laser-induced periodic surface structures (LIPSS).
Igor Gvozdovskyy, Zoya Kazantseva, Simon Schwarz, Ralf Hellmann   +3 more
doaj   +2 more sources

Wavelength-dependent correlation of LIPSS periodicity and laser penetration depth in stainless steel [PDF]

Beilstein Journal of Nanotechnology
This research paper delves into the exploration of laser-induced periodic surface structures (LIPSS) on a 100 µm thin stainless steel (SS) sheet.
Nitin Chaudhary, Chavan Akash Naik, Shilpa Mangalassery, Jai Prakash Gautam, Sri Ram Gopal Naraharisetty   +4 more
doaj   +2 more sources

Exploring 2D-LIPSS formation under circular polarization in ultrafast laser processing. [PDF]

Nanophotonics
Abstract The formation of isotropic two‐dimensional laser‐induced periodic surface structures (2D‐LIPSS) under circular polarization demonstrates a unique self‐organization capability. In this study, we investigate LIPSS formation under both circularly and linearly polarized light, assessing the impact of polarization dynamics, from discrete rotation ...
Georges S, Nakhoul A, Fedorov V, Saby P, Faure N, Bruhier H, Compère N, Di Maio Y, Sedao X, Colombier JP.   +9 more
europepmc   +2 more sources

Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation [PDF]

Beilstein Journal of Nanotechnology
This work presents a unique and straightforward method to synthesise hafnium oxide (HfO2) and hafnium carbide (HfC) nanoparticles (NPs) and to fabricate hafnium nanostructures (NSs) on a Hf surface.
Abhishek Das, Mangababu Akkanaboina, Jagannath Rathod, R. Sai Prasad Goud, Kanaka Ravi Kumar, Raghu C. Reddy, Ratheesh Ravendran, Katia Vutova, S. V. S. Nageswara Rao, Venugopal Rao Soma   +9 more
doaj   +2 more sources

Formation of Laser‐Induced Periodic Surface Structures on Titanium Alloy Using a Picosecond Laser: Dependence on Fluence and Number of Laser Pulses

Advanced Materials Interfaces
Laser ablation is a widely used technique for the fabrication of periodic structures on solids to manipulate their surface properties. A fundamental challenge in the formation of laser‐induced periodic surface structures (LIPSS) is ascertaining the ...
Iana Fomicheva, Petr Druzhinin, Hans Amler, Alexander B. Tesler, George Sarau, Gerd Leuchs, Silke H. Christiansen   +6 more
doaj   +2 more sources