Lecture

Laser Ablation: Excimer Lasers

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In course

MICRO-520: Laser microprocessing

The physical principles of laser light materials interactions are introduced with a large number of industrial application examples. Materials processing lasers are developing further and further, the lecture presents the physical limitations of the proces ...

Description

This lecture covers the principles and applications of laser ablation, focusing on excimer lasers. Topics include the generation processes, laser light intensity, Q-switching, wavelength selection, and technical specifications. The lecture also discusses the interaction of excimer light pulses with materials, ablation plume formation, and materials suitable for laser ablation. Various applications such as microstepper technology, keratectomy, and laser machining of polymers are explored. Additionally, the lecture delves into ultrafast laser ablation, mode-locking regimes, and the influence of pulse duration on ablation quality.

Instructor

Patrik Willi Hoffmann

Expertise WettabilityMico-structuringElectron-beam DepositionPhotodepositionPhotoablationNano-optics Mission Patrik Hoffmann is heading the laboratory for Advanced Materials Processing at Empa. Laser materials processing including Additive Manufacturing are key topics in recent years.At the EPFL cite in the Laboratory for Optical Materials and Characterization LPMAT, novel functional material depositions by HV-CVD are studied. Recently BaTiO3 heteroepitaxial films have been grown on SrTiO3 buffered silicon

Official source

Ontological neighbourhood

Physics

Optics: Lasers

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