The Particle-In-Cell (PIC) method is widely used in the plasma simulations for applications ranging from Inertial Confinement Fusion to plasma etching in microfabrication. In the PIC algorithm, the dynamics of charged particles in the presence of electromagnetic fields is described self-consistently by solving the Maxwell’s equations along with the equation of motion of charged particles. In this talk, the application of this method to simulate interaction of the intense ultra-short laser pulse (intensity ~ 1018 W/cm2, duration ~ 50 fs) with the plasma will be discussed. In particular, the simulation results of a novel compact laser-plasma electron accelerator inside a dielectric capillary will be presented. In this scheme, the dielectric capillary tube, similar to the optical fiber, is used to guide the high intensity laser over many Rayleigh lengths. The overview of this concept, along with its advantages and disadvantages will be discussed in detail.
Dr. Bhooshan Paradkar is currently a post-doctoral researcher at University of Paris-Sud 11 working on computational modeling of laser-plasma interaction. He did his doctoral studies at University of California-San Diego, USA and Bachelor of Electrical Engineering at University of Mumbai. Prior to the doctoral studies, he worked on high temperature plasma confinement experiments at Institute for Plasma Research as an electrical engineer. His research interests include Particle-In-Cell simulations, computational electromagnetics, laser-plasma interaction and non-linear optics.