Paper 14093-9
Paper 14093-9
Dynamic Beam Shaping for Femtosecond Laser Multi-Pulse Structuring of Ti alloy Surfaces
13 April 2026 • 12:00 - 12:15 CEST | Curie A (Niveau/Level 1)
Abstract
Femtosecond laser processing enables precise micro- and nanoscale structuring of metallic surfaces, offering significant potential for biomedical applications such as titanium-based implants. This work investigates the flexibility provided by dynamically changing the spatial beam shape between successive laser passes during multi-pulse surface texturing. Our method alternates between different profiles within the same sequence, expanding the range of achievable surface geometries .
Experimental characterization reveals that combining multiple beam shapes enhances structural complexity compared to single-shape strategies. We analyze the influence of beam overlap and spatial configuration on ablation patterns using quantitative surface measurements. Empirical ablation modeling and simplified thermal simulations are employed, offering insight into material removal and heat accumulation mechanisms.
Our results demonstrate that multi-shape beam strategies represent a promising route for advanced ultrafast laser-based micro/nanostructuring for enhanced biomedical implant performance.
Presenter
Lab. de Photonique d'Angers (France)
Antony MENARD has developed an interest in Physics since high school. To continue in this domain, he joined the physics degree cursus in Bordeaux. Then, he chose to do a professional Master's degree with a speciality in instrumentation and optics (CUCIPhy program, 2023–2025). During his formation he developed many theoretical skills in photonics as well as experimental skills during his internships, like the use of optical tweezers in the laboratory or the use of a hyperspectral system.
Driven by his thirst for knowledge, he chose to continue his studies and had the opportunity to do a PhD under the direction of Dr. MAUCLAIR C. a specialist in beam shaping, with the partnership of the University of Magdeburg for the creation of a new type of bacterial-resistant material by laser effect. This subject has led to many possibilities in spatial-temporal laser use, nano-structuration, and the biological effect that can be useful for future protheses.