Interrelation of the macrostructure and microstructure with the nonlinear optical properties of iodate and titanate crystals |
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Authors: | B. I. Kidyarov V. V. Atuchin N. V. Pervukhina |
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Affiliation: | (1) Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 13, Novosibirsk, 630090, Russia;(2) Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia |
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Abstract: | Noncentrosymmetric crystals of iodates and titanates have been systematized, and the principles of the design of new nonlinear optical materials by means of revealing empirical composition-structure-property relationships have been considered. It is demonstrated that, in the diagram of chemical bond lengths, noncentrosymmetric crystals of simple and binary iodates and titanates are located within the rosette formed by three partially intersecting ellipses. The empirical dependences of the nonlinear optical susceptibility χ(2) of the crystal on the length of the shortest metal-oxygen chemical bond L are established for iodates and titanates. These dependences exhibit maxima at L = 177 and 180 pm for iodates and L = 177 and 188 pm for titanates. |
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