Speaker
Description
The 10 PW High Power Laser System (HPLS) at Extreme Light Infrastructure—Nuclear Physics (ELI-NP) is a dual arm laser system capable to deliver peak power laser pulses of 10 PW at 1 shot/minute repetition rate, 1 PW at 1 Hz repetition rate or 100 TW at 10 Hz repetition rate. The pulses from both arms are distributed to dedicated experimental areas: E4 for 2 x 100 TW, E5 for 2 x 1 PW and E1-E6 for the 2 x 10 PW [1]. Using the HPLS, we demonstrated for the first time in the world the propagation of 10 PW peak power pulses to an experimental area [2].
From the beginning of 2020 laser pulses at nominal power, 100 TW and 1 PW respectively, were sent towards E4 and E5 areas for commissioning experiments. From the end of 2022, the 10 PW laser beams are starting to be used in the experimental area E1 for pre-alignment, with the first 10 PW pulses on target in April 2023. In this period procedures to tune the laser parameters are developed, adapted and implemented in the HPLS.
In this presentation, we will show some of the laser parameters obtained in the experimental areas, the tuning procedures used to optimize them, and our efforts towards proper laser metrology on target. These methods rely strongly on the collaboration of the laser operation team and the experimental team. The laser parameter metrology is essential for consistent experimental results.
The Extreme Light Infrastructure—Nuclear Physics (ELI-NP) [3,4] is getting closer to becoming fully operational and it is already open for users. In the presentation, we will show statistical data on beam delivery with typical laser parameters that can be expected by the users.
This work was supported by the Extreme Light Infrastructure Nuclear Physics (ELI-NP) Phase II, a project co-financed by the Romanian Government and the European Union through the European Regional Development Fund the Competitiveness Operational Programme 065208-5 (1/07.07.2016, COP, ID 1334), IMPULSE Project (grant 871161), and the Project PN 23210105, funded by the Ministry of Research, Innovation, and Digitalization. We gratefully acknowledge the contribution of the ELI-NP Experimental Team, Thales, and collaborators.
[1] F. Lureau et al., High-energy hybrid femtosecond laser system demonstrating 2 × 10 PW capability, High Power Laser Science and Engineering, 8, E43 (2020)
[2] C. Radier, et al., 10 pw peak power femtosecond laser pulses at ELI-NP, High Power Laser Science and Engineering, 10, (2022)
[3] S. Gales, et al., The extreme light infrastructure-nuclear physics (eli-np) facility: new horizons in physics with 10 pw ultra-intense lasers and 20 mev brilliant gamma beams.
Reports on Progress in Physics, 81(9), (2018) [4] K. A. Tanaka, et at., Current status and highlights of the ELI-NP research program, Matter and Radiation at Extremes 5(2) 024402 (2020)
