20.500.12556/RUL-167699 2.5D femtosecond laser microstructuring of complex surface patterns Surface structuring aimed at improving aerodynamic, hydrodynamic, and wetting properties has gained traction as methods of material processing evolved and the need for highly efficient manufacturing manifested. Femtosecond laser processing has matured as a manufacturing method but remains limited in throughput and scalability due to the high precision required. Here we present a new concept for 2.5-dimensional surface structuring that simultaneously improves processing throughput and precision compared to traditional laser surface structuring approaches, leveraging the pulse-on-demand capabilities of the latest femtosecond laser sources. The approach is compatible with any repeatable and predictable scanning system, where we demonstrate an up to 10-fold increase in processing throughput compared to standard layer-by-layer material removal. Moreover, the precise pulse emission timing enables near-continuous variation in the laser pulse repetition rate, achieving pulse positioning precision equivalent to 30 ns timing steps. Further, we measure the material-dependent ablation response to changing laser pulse repetition rates, identifying intervals where the material removal rate is linearly scalable with the repetition rate while preserving the intrinsic high-quality of ultra-short laser processing. The proof of concept is a single-step femtosecond laser processing of surfaces based on a depth-encoded image input. femtosecond laser laser microstructuring pulse-on-demand biomimetic surfaces complex patterns femtosekundni laser lasersko mikrostrukturiranje pulz na zahtevo biomimetične površine kompleksni vzorci true false true Angleški jezik Slovenski jezik Članek v reviji 2025-03-07 11:58:38 2025-03-07 11:58:48 2025-03-15 04:05:45 0000-00-00 00:00:00 2025 0 0 6 str. art. 106099 Vol. 61 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.375.826 2468-0230 10.1016/j.surfin.2025.106099 228300035 RAZ_Peterlin_Jaka_2025.pdf RAZ_Peterlin_Jaka_2025.pdf 1 1F70D3EDCA6BA383A30CDB6D7607F683 f82b852975642e546eec0537fe5cc4ad78a03dd5453e1b9c071e00cee406ed92 fa6dcd5c-fb43-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200421 https://www.sciencedirect.com/science/article/pii/S2468023025003591 0 3428aad9-fb42-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200420 Fakulteta za strojništvo 0 0 0