David Gregocki
I am one of 12 EuPRAXIA-DN fellows from all over the world whose PhD studies and research are funded from the Horizon Europe Marie Skłodowska-Curie Actions Doctoral Network funds that focus on developing a dedicated particle accelerator research infrastructure based on novel plasma acceleration concepts and laser technology. I 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). Both my degrees were obtained from the Czech Technical University in Prague. My 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, I proposed a tomographic system for the experimental diagnostics of the accelerating field. My master’s thesis (titled: Transition of electrons beams between vacuum and plasma in the external injection into a laser wakefield accelerator, supervised by Ing. Miroslav Krůs, PhD) 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, I 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. Part of it was also my research project, which dealt with the optimalization of the electron bunch properties considering external injection. My current objective within EuPRAXIA-DN, will be to address challenges in generating a train of ultrashort laser pulses suitable for LWFA. I 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. My research will involve theoretical and numerical studies as well as experimental activities at the Intense Laser Irradiation Laboratory at CNR-INO and ELI ERIC.