Time-Domain Modeling of Dispersive Drude–Lorentz Media (Wave Optics)

Application ID: 22281


This tutorial shows how to solve the full time-dependent wave equation in dispersive media such as plasmas and semiconductors. The 2D TM in-plane wave model solves for the vector potential from the wave equation and for an auxiliary electric polarization density from an ordinary differential equation.

The geometry consists of a single dispersive slab with a sub-wavelength slit in it. Periodic boundary conditions are applied, thus physically this is an array of slits. The source of electromagnetic radiation is a plane wave pulse with flat front and Gaussian temporal shape.

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