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Refractive Index Database

The table below contains links to refractive index data for common materials. Each material in the database has refractive index listed as a function of wavelength over a range typically required for thin-film thickness measurement.

Instant Material Filter: (Enter a material to filter the list)

Popular selections: Acrylic | Al2O3 | Au | ITO | Quartz | Si | SiO2 | Si3N4

If your material isn’t listed in the database, contact us about us measuring it for you in 1-2 days. There is no charge for this service. Substrate kits for depositing films for refractive index measurement, as well as thin-film thickness measurement are also available. We might even list you as a source in our refractive index database for that material!