29 June 2026 to 3 July 2026
EICC, Edinburgh
Europe/London timezone

Bayesian optimization based laser wavefront tuning for Laser Wakefield Acceleration

Not scheduled
20m
EICC, Edinburgh

EICC, Edinburgh

150 Morrison St, Edinburgh EH3 8EE
Poster Presentation Laser-plasma Acceleration of Particles and Plasma-based Radiation Sources (BPIF)

Description

Laser wakefield acceleration (LWFA) has emerged as a strong candidate for next-generation compact accelerators due to its ability of reaching high accelerating gradients. However, LWFA technique is highly sensitive to the properties of driving laser pulse and small distortions in laser wavefront can significantly affect the wakefield formation and the overall quality of produced electron beam. In this work, we apply Bayesian optimization to adaptively control the laser wavefront using deformable mirrors for achieving high-quality electron beams. Particle-In-Cell simulations are performed using open-source code - WarpX, where Zernike polynomial coefficients serves as optimization variables for parameterizing the laser phase. The optimizer iteratively searches for wavefront configurations to achieve a high-quality beam with enhanced metrics like charge, energy spread and peak energy. The study provides a computational framework for data-driven wavefront optimization in LWFA, with an extension towards experimental implementation planned on our 100 TW laser-facility (UHI100) in the upcoming months.

Author

Proxy Kad (Universite Paris-Saclay, CEA LIDYL)

Co-authors

Luca Fedeli (Université Paris Saclay, CEA LIDYL) Dr Mekha Vimal (Universite Paris-Saclay, CEA LIDYL) Mr Abhishek Panchal (Universite Paris-Saclay, CEA LIDYL) Mr David Garzella (Universite Paris-Saclay, CEA LIDYL) Mr Fabrice Reau (Universite Paris-Saclay, CEA LIDYL) Dr Kosta Oubrerie (Université Paris Saclay, CEA LIDYL) Dr Tiberio Ceccotti (Universite Paris-Saclay, CEA LIDYL) Dr Sandrine Dobosz Dufrenoy (Universite Paris-Saclay, CEA LIDYL)

Presentation materials

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