Optimized matching conditions for self-guided laser wakefield accelerators

Abstract

We revisit the matching conditions for self-guided laser pulse propagation in plasma and refine their formulation to maximize the energy of electrons produced via laser wakefield acceleration. Bayesian optimization, combined with particle-in-cell simulations carried out in a quasi-three-dimensional geometry and a Lorentz-boosted frame, is employed. The optimization identifies the maximum electron energy that a self-guided laser wakefield accelerator, driven by a laser of a given energy, can produce, together with the corresponding acceleration distance. Our results further demonstrate that electrons with energies close to the maximum value can be obtained across a relatively wide range of input parameters and without the need for their precise tuning. This provides substantial flexibility for experimental implementation and significantly relaxes the operational constraints associated with self-guided laser wakefield accelerators.

17 pages, 7 figures

References in corpus (23)

• Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
• Femtosecond x rays from laser-plasma accelerators
• Charged particle motion and radiation in strong electromagnetic fields
• Scalings for ultra-relativistic laser plasmas and monoenergetic electrons
• One-to-one direct modeling of experiments and astrophysical scenarios: pushing the envelope on kinetic plasma simulations
• Automation and control of laser wakefield accelerators using Bayesian optimisation
• Three Dimensional Relativistic Electromagnetic Sub-cycle Solitons
• 1 kW, 10 mJ, 120 fs coherently combined fiber CPA laser system
• High-charge 10 GeV electron acceleration in a 10 cm nanoparticle-assisted hybrid wakefield accelerator
• Optical guiding in meter-scale plasma waveguides
• Implementation of a hybrid particle code with a PIC description in r-z and a gridless description in $\varphi$ into OSIRIS
• Controlling the Numerical Cerenkov Instability in PIC simulations using a customized finite difference Maxwell solver and a local FFT based current correction
• Effect of the laser wavefront in a laser-plasma accelerator
• Bayesian optimization of laser-plasma accelerators assisted by reduced physical models
• libEnsemble: A Library to Coordinate the Concurrent Evaluation of Dynamic Ensembles of Calculations
• Modeling of Laser wakefield acceleration in Lorentz boosted frame using EM-PIC code with spectral solver
• Ultrarelativistic electron beams accelerated by terawatt scalable kHz laser
• Experimental demonstration of mice tumor control with a laser-accelerated high-energy electron radiotherapy prototype
• First Proof of Principle Experiment for Muon Production with Ultrashort High Intensity Laser
• Spin-polarized electron beam generation in the colliding-pulse injection scheme
• Lorentz boosted frame simulation of Laser wakefield acceleration in quasi-3D geometry
• Bayesian optimization of electron energy from laser wakefield accelerators
• Measurement of directional muon beams generated at the Berkeley Lab Laser Accelerator