The varFDTD solver uses the same materials in the Material Database as the FDTD solver. In this video, you will learn how the 2D effective materials are created in the varFDTD solver based on the slab mode point and the test points.
In this video, we will use the SOI taper to demonstrate the creation of the 2D effective materials based on the slab mode point and the test points. You will also learn how to visualize the frequency-dependent properties of the 2D effective index materials using the Material Explorer.
The simulation file (taper_design.lms) used in the video can be downloaded from the "Curved waveguide taper" page.