Enhancing electron acceleration with sinh-squared Gaussian pulse under external magnetic fields

Energy enhancement of electrons is a promising field of research due to its application in various fields of scientific research. The role of various parameters like plasma density, frequency chirp, laser pulse length and external magnetic field, etc., are studied and optimized for the enhancement of energy gain and energy efficiency of the acceleration scheme. In the recent study, we have chosen a novel laser pulse profile, i.e., sinh-squared-Gaussian laser pulse to study the effect of laser electric field and externally applied transverse static magnetic field. The generated laser wake potential, wakefield, and electron energy gain have a positive correlation with laser electric field strength and the strength of the external magnetic field. In our study, with an increase in magnetic field from 0 to 40 T (1 Tesla = 10 kilogauss) and laser electric field of 4.81x1011V/m\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$4.81\times {10}<^>{11}\text{ V/m}$$\end{document}, generated wake potential increases from 164 to 183.59 kV, laser wakefield increases from 6.18 to 6.91 GV/m, and electron energy gain increases from 162.98 to 182.45 MeV. Our research will contribute to the development of a novel scenario for the augmentation of electron energy using magnetic fields.