Enhancing laser wakefield acceleration through controlled magnetic field influence: a cosh-squared Gaussian pulse study

Laser wakefield acceleration is a highly promising technique for tiny particle accelerators that show potential for use in a range of scientific and medical disciplines. This study aims to explore the augmentation of laser wakefield acceleration by deliberately manipulating magnetic fields in weakly relativistic regime. More precisely, we utilize a cosh-squared Gaussian pulse to manipulate the laser intensity distribution, with the goal of enhancing the interaction between the laser and the plasma medium. Through theoretical analyses, we explore the impact of the cosh-squared Gaussian pulse on the formation and propagation of the laser wakefield, as well as its subsequent effects on electron acceleration. Furthermore, we introduce a controlled magnetic field into the system, strategically manipulating its strength and orientation to augment the acceleration process. The interplay between the modified laser pulse and the magnetic field is investigated to elucidate the underlying physics governing enhanced particle acceleration. This research contributes valuable insights into the fundamental mechanisms governing laser-plasma interactions and opens new avenues for optimizing compact particle accelerators for diverse applications.