To request the proprietary encrypted file please enter your Filmetrics system information
Gallium phosphide (GaP), a phosphide of gallium, is a compound semiconductor material with an indirect band gap of 2.26 eV. The polycrystalline material has the appearance of pale orange pieces.
For a typical sample of GaP the refractive index and extinction coefficient at 632.8 nm are 3.31375 and 0. 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: