Complex refractive index of polycarbonate over the UV-Vis-IR region from 0.2 to 3 μm.

The complex refractive index dispersion of polycarbonate was identified from reflectance and transmittance measurements across the spectral range of 0.2-3 μm. Two identification methods were investigated. A numerical identification method that allows rigorous consideration of different experimental configurations is described. The results obtained are compared with values calculated with an analytical method assuming normal incidence.