Abstract

A theoretical method has been set up to calculate the electro-optic tensor coefficientsrijk, based on the Phillips–Van Vechten (PV) dielectric theory and the Levine bond charge model. Starting from the crystal structure data and only introducing the experimentally determined optical permittivity and dielectric constant, the electro-optic tensor coefficientsrijkcan be quantitatively predicted. The theoretical calculations are in good agreement with experiment in the case of zinc blende and wurtzite crystals. For zinc blende crystals, the effects of covalent radii on the linear electro-optic coefficients are discussed.

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