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Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity.
For a typical sample of Cu the refractive index and extinction coefficient at 632.8 nm are 0.23883 and 3.415658. 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 - H. J. Hagemann, W. Gudat, and C. Kunz, DESY Report SR-74/7, Hamburg, 1974; H. J. Hagemann, W. Gudat, and C. Kunz, J. Opt. Soc. Am. 65, 742 (1975)
No guarantee of accuracy - use at your own risk.
Tab-delimited data file for unrestricted use: