Random walk

By closing a paper based on dielectric permittivities of metals, I realized how much these optical data are badly known. Despite of the extraordinary efforts of Palik and co-workers to collect all together a large amount of good optical data, it appears...

If you want to calculate dielectric constants from experimental measurements of transmission or reflection, you can use this great software. RefFit First step is to fit the spectrum with Drude-Lorentz model and then fill the Kramer-Kronig requirements....