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For a typical sample of CoSi2 the refractive index and extinction coefficient at 632.8 nm are 2.98178 and 1.792538. Below are files of complete refractive index and extinction coefficients. If the file is not available for download, you can request our proprietary file by clicking "Request".
Refractive Index Reference - Sopra Material Database
No guarantee of accuracy - use at your own risk.
Tab-delimited data file for unrestricted use: