Abstract

A laser wakefield acceleration (LWFA) model has been upgraded to better predict the outcome of experiments to test two new LWFA techniques. The first method is seeded self‐modulated LWFA where an ultrashort electron bunch acts as a seed to create a wakefield in a plasma, which is subsequently amplified by the laser pulse. The second scheme is pseudo‐resonant LWFA where nonlinear pulse steepening of the laser pulse by the plasma allows generation of a significant wakefield. A witness bunch that probes the wakefield was incorporated in the model. The model was also exercised to examine new operational regimes currently available during the experiments.

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