Refractive Index Data

Use three-column format of consisting of λ n κ where λ is in nm, n is the real part of the refractive index, and κ is the imaginary part of the refractive index. Positive values of κ represent lossy materials. During calculation, the refractive index data is obtained by linearly interpolating between the provided values. For values outside the specified range, the last (or first) data is used.