Changes
/* Dispersive Materials */
===Global vs. Local Control Of FDTD Mesh===
{{mainpage|Advaned [[Advanced Meshing in EM.Tempo]]}}
When [[EM.Cube]] generates an FDTD mesh, a large number of geometrical considerations are taken into account. These include the bounding box of each object and its corners, the ends of a line, the apex of a cone or pyramid, or the locations of lumped sources, field probes and sensors, vertices of plane wave or far field boxes, to name a few examples. These points are “locked” as fixed grid nodes in the FDTD mesh.
===Waveforms & Discrete Fourier Transforms===
{{mainpage| [[Waveforms and Discrete Fourier Transforms|[[Waveforms and Discrete Fourier Transforms|[[Waveforms and Discrete Fourier Transforms|Waveforms And Discrete Fourier Transforms]]]]]] }}
The accuracy of the FDTD simulation results depends on the right choice of temporal waveform. [[EM.Cube]]'s default waveform choice is a modulated Gaussian pulse. At the end of an FDTD simulation, the time domain field data are transformed into the frequency domain at your specified frequency or bandwidth to produce the desired observables.
