Refractive Index of Ge, Germanium

Germanium is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon.

For a typical sample of Ge the refractive index and extinction coefficient at 632.8 nm are 5.477 and 0.784. 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".

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Refractive Index Reference - Sopra Material Database

Wikipedia: Germanium
D. E. Aspnes and A. A. Studna (1983) Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV, Phys. Rev B 27 985doi: 10.1103/PhysRevB.27.985
Sopra Material Database

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