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David Gregocki

Manipulation and Characterization of Ultrashort Laser Pulses for High-quality Electron Bunch Acceleration

Institute: Consiglio Nazionale delle Ricerche - Istituto Nazionale di Ottica
Supervisor: Luca Labate

David was born in Slovakia, although he spent his university life in Prague, Czech Republic. He obtained a bachelor’s degree in Experimental Nuclear and Particle Physics (September 2021) and a master’s degree in Nuclear and Particle Physics (June 2023), during which he has been awarded merit scholarships based on outstanding achievements in academics. Both his degrees were obtained from a CTU in Prague. His field of interest during this period has been laser-driven plasma-based acceleration.

Starting with diagnostic methods of laser wakefield acceleration (LWFA) within the bachelor’s framework, David became acquainted with currently used methods of characterization of the plasma wakefield. Based on this, he proposed a tomographic system for the experimental diagnostics of the accelerating field. His master’s thesis focused on the external injection of an electron bunch in the plasma wakefield with different plasma density profiles and their influence on electron bunch properties using 2D and 3D particle-in-cell simulations.

From 2021 to 2023, he was a team member of a working group of scientists and students at the FNSPE, CTU in Prague, that performed research and development of compact laser-driven accelerators. This group covered currently progressive fields in plasma accelerator research, from numerical simulations over ultrashort bunch generation and diagnostics development to plasma accelerator technology. Part of it was also David's research project, which dealt with the optimalization of the electron bunch properties considering external injection.

His next task, now within the EuPRAXIA-DN, will be to address challenges in generating a train of ultrashort pulses suitable for LWFA. He will study ultrashort and ultra-intense fields, analyze the longitudinal functions of focused beams, investigate wavefront-tailoring techniques, and examine the stability and reproducibility of laser pulse trains. His research will involve theoretical and numerical studies as well as experimental activities at the Intense Laser Irradiation Laboratory of CNR-INO.

In his free time, David enjoys reading all types of books, watching online lectures and podcasts. During the summer, he likes to go hiking, and during the winter, he loves to ski. He was also a member of the SPIE Student Chapter, where he helped organize meetings and events for the public.

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