A sinusoidal source of light of free space wavelength 1.753 microns is excited at the left end of the straight waveguide as a line source along the width of the waveguide.
The surrounding area is free space of relative permittivity 1. Both the waveguides are made of material of relative permittivity 6. FDTD: One-dimensional, free space E-H formulation of Finite-Difference Time-Domain method. MATLAB using Finite Difference Time Domain (FDTD) method with a graphic user. A 450 nm thick ridged circular waveguide with a central radius of 1 micron is placed at a distance 100nm below the straight waveguide. The FDTD calculates the 3D electromagnetic propagation numerically in the. In this program, a 3.05 micron X 3.6 micron domain is taken with a 450 nm thick horizontal straight waveguide placed in the upper part at a distance of 300 nm from the top.
interface to a Matplotlib module which provides a MATLAB-like interface. Indian Institute of Technology Madras (IITM) with FDTD scheme Swig and ctypes SWIG and Ctypes We then create a variable. Computational Electromagnetics, Fall 2011 Finite-difference time-domain (fdtd) matlab codes for first- and second-order em differential equations testing ourselves Abstract: A set of two-dimensional (2D) electromagnetic (EM) MATLAB codes, using both first-order coupled differential (Maxwell) equations and second-order decoupled (wave) equations, are developed for both transverse-magnetic (TM) and transverse-electric (TE) polarizations.