5. First numerical examples

In what follows, we will consider dielectric materials, i.e. those with low dissipation (low absorption): the imaginary part of the refractive index is smaller than the real part. A high or low index material is a quasi-transparent material whose real refractive index (n _H or n _B ) is higher (n _H > n _s ) or lower (n _B < n _s ) than the substrate's real index n _s . The dielectrics used for the numerical calculation are generally air (superstrate index n ₀ = 1), glass (substrate index n _s ...