Simulation of Electromagnetic Waves Propagation in Plasma Using Modified FDTD Method

摘要

Finite-Difference Time-Domain (FDTD) method, has been modified so to allow simulations of electromagnetic wave propagation problems in frequency-dependent media. In the case of plasmas formulation consists of two curl equations for electric and magnetic field and electron equation of motion, while ions are assumed to be motionless. Present modification of FDTD method makes possible simulations of propagation in all others frequency-dependent media in which interaction with electromagnetic field can be described with appropriate charged particle's equation of motion.