Particle-in-cell simulation of laser wakefield accelerators with oblique lasers in quasicylindrical geometry

Journal Article · 06 February 2025 · Physical Review Accelerators and Beams

DOI: https://doi.org/10.1103/PhysRevAccelBeams.28.021301 · OSTI ID:2513582

Ma, Minghao ; Zeng, Ming ; Wang, Jia; Lu, Guangwei ; Yan, Wenchao ; Chen, Liming; Li, Dazhang

In the studies of optical injections in laser or beam-driven wakefield accelerators, there is a frequent demand for using obliquely propagating assistant lasers in particle-in-cell simulations. In conventional methods, this is only possible in either two- or three-dimensional Cartesian geometries, which have the drawbacks of either lack of fidelity for the actual situation or requiring a huge amount of computational resources. In this work, we develop a new method that uses an expression-defined oblique laser field to simulate such situations in quasicylindrical geometry particle-in-cell simulations, having the advantages of both maintaining good fidelity and saving computational resources. As an example, we use this method in the scissor-cross ionization injection scheme for the optimization of the injected beam quality. This method is widely applicable to particle injections with assistant lasers in wakefield accelerators, as long as the assistant lasers only influence the injected particles during the injection process. Published by the American Physical Society 2025

• Sponsoring Organization: USDOE
• OSTI ID: 2513582
• Journal Information: Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Journal Issue: 2 Vol. 28; ISSN 2469-9888; ISSN PRABCJ
• Publisher: American Physical SocietyCopyright Statement
• Country of Publication: United States
• Language: English