Synergistic enhancement of electron acceleration by chirp laser modulation and wiggler magnetic field

A numerical analysis is done to examine electron acceleration caused by chirped laser pulses. A positive chirp is applied to determine the electron energy gain. In this work, the energy gain for an electron has been examined using the wakefield produced by a chirped laser pulse in the presence of a magnetic undulator. The maximum energy gain of 767 MeV has been investigated numerically for the different optimised values of laser frequency chirp, laser intensity, and external magnetic field. It is demonstrated that the chirp frequency and laser pulse amplitude have a significant impact on the total energy of the electron. The chirp parameter has an optimum value at which electron acceleration is accomplished. With optimum chirp and laser pulse amplitude, the energy gain rises. The importance of the chirp effect on the energy obtained by an electron from an electromagnetic wave is emphasized.