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Barium titanate is an oxide of barium and titanium with the chemical formula BaTiO3. It is a ferroelectric ceramic material, with a photorefractive effect and piezoelectric properties.
For a typical sample of BaTiO3 the refractive index and extinction coefficient at 632.8 nm are 2.41115 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 - Filmetrics Composite
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