Abstract
THE crystals of potassium dihydrogen arsenate (KDA, KH2AsO4) and its isomorphs, belonging to the point group symmetry &42bar;m, crystallize in the tetragonal system in the paraelectric phase at room temperature. This group, together with the &43bar; m symmetry group of the cubic system, are the only crystals which possess linear electro-optic effect free of background birefringence. The crystals of the first group, however, possess relatively large electro-optic constants. These crystals have been grown in an effort to find better electro-optic modulators. Measurements of the half-wave retardation voltage Vλ/2 performed on these single crystals are presented here.
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ADHAV, R. Linear Electro-optic Effects in Tetragonal Arsenates. Nature 220, 1230 (1968). https://doi.org/10.1038/2201230a0
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DOI: https://doi.org/10.1038/2201230a0
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