Paper 13005-12
Paper 13005-12
Characterizing focusing units for micromachining with ultrashort laser pulses
8 April 2024 • 17:00 - 17:20 CEST | Curie A, Niveau/Level 1
Abstract
We investigate the focusing performance of optical tools for materials processing with ultrashort laser pulses. Here, focus distributions generated by high-NA microscope objectives and f-theta objectives are evaluated in terms of peak intensities and symmetry breaks when pulses of ≲ 100 fs are applied. With our simulations, we additionally examine the effects of spatial beam shaping and uncover associated spatio-temporal focusing phenomena, when diffractive optical concepts are used, for example, to shape customized non-diffracting beams or 3D-focus distributions.
Presenter
Dario Mekle
TRUMPF Laser- und Systemtechnik GmbH (Germany), Friedrich-Schiller-Univ. Jena (Germany), Abbe Ctr. of Photonics (Germany)
Dario Mekle is a doctoral candidate at Trumpf Laser- und Systemtechnik GmbH, supervised by Prof. Stefan Nolte from Friedrich Schiller University Jena. His research focuses on "material processing using spatially and temporally shaped ultrashort laser pulses". With a master's degree in physics from the Karlsruhe Institute of Technology, specializing in solid-state optics, quantum optics, and computational optics, the author brings a robust foundation to their research on advanced laser systems. He actively participates in scientific events, contributing to collaborative discourse and knowledge dissemination. His outreach extends to sharing his passion for physics and laser technology with other scientists. Under the mentorship of Prof. Nolte, his scholarly journey promises to have a significant impact on the evolving frontiers of laser technology, materials science, and computational optics.