Diagonal Refractive Index Anisotropy Simple Example
This page provides a simple example simulation of a diagonally anisotropic material.
$$\varepsilon = \begin{bmatrix} \varepsilon_{x} & 0& 0 \\ 0 & \varepsilon_{y} & 0 \\ 0 & 0 & \varepsilon_{z} \end{bmatrix}$$
The diagonally anisotropic material in the example file has a permittivity of n_xx, n_yy, n_zz = [2, 2, 1.001]. The anisotropic nature of the material is easily visible by comparing the field profiles of the Ex and Ez fields. Notice the reflection and refraction visible in the Ex fields that is not present in the Ez fields.