Tutorial - Visualizing dielectric functions

Tutorial
Tutorial - Making a dielectric function using Matlab
Tutorial - Making a dielectric function using MPB
Tutorial - Visualizing dielectric functions
Tutorial - Placing and configuring the dipoles
Tutorial - Selecting the time steps
Tutorial - Reading the results

It is important to carefully check your dielectric function before running a calculation to assure you have the structure you want. The dielectric function itself is stored in HDF5 file format with the file extension .h5. There are two options discussed here for viewing a dielectric function: looking through the array of numbers in the h5 file using HDFView or by converting the h5 file to vtk format which can be displayed in 3D by a variety of free software e.g. ParaView. In addition, HDF5 files can be directly imported via h5read function provided in MATLAB software and visualized therein.

You should have an h5 file in hand, produced using MPB, Matlab, or programmed directly in C++.