Pseudosymmetric Features and Nonlinear Optical Properties of Potassium Titanyl Phosphate Crystals

Anastasia P. Gazhulina, Mikhail O. Marychev

Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod, Russia.

DOI: 10.4236/csta.2013.23015                

Abstract

A number of publications containing structural data, characteristics of nonlinear optical properties of pure and doped crystals of potassium titanyl phosphate (KTP) family have been reviewed to analyze the structural and symmetry conditionality of nonlinear optical properties of these crystals. The pseudosymmetric features of KTP-type crystals with respect to inversion are investigated. Specifically, pseudoinversion distribution maps are calculated; pseudoinversion extrema and coordinates of pseudoinversion centres are found; and the distributions of pure and doped KTP-type structures and their individual atomic sublattices over the degree of pseudoinversion are analyzed. A correlation between the characteristics of nonlinear optical properties of a number of crystals belonging to the KTP family and the degree of pseudoinversion of their atomic structures is demonstrated.

Keywords

Potassium Titanyl Phosphate Family; Pseudosymmetry; Nonlinear Optical Properties

Conflicts of Interest

The authors declare no conflicts of interest.

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