Structural Reasons for the Nonlinear Optical Properties of KTP Family Single Crystals
Nataliya E. Novikova,
Nataliya I. Sorokina,
Igor A. Verin,
Olga A. Alekseeva,
Ekaterina I. Orlova,
Valentina I. Voronkova,
Michael Tseitlin
Affiliations
Nataliya E. Novikova
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Moscow 119333, Russia
Nataliya I. Sorokina
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Moscow 119333, Russia
Igor A. Verin
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Moscow 119333, Russia
Olga A. Alekseeva
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Moscow 119333, Russia
Ekaterina I. Orlova
Faculty of Physics, Moscow State University, Moscow 119991, Russia
Valentina I. Voronkova
Faculty of Physics, Moscow State University, Moscow 119991, Russia
Michael Tseitlin
Crystal Growth Laboratory, Ariel University of Samaria, Ariel 40700, Israel
A brief review focuses on studies into the structural reasons for the nonlinear optical properties of crystals of the potassium titanyl phosphate family, performed at the Shubnikov Institute of Crystallography. Accurate X-ray diffraction data are discussed, providing evidence that the optical susceptibility of crystals is related not only to the alternation of long and short Ti–O bonds in the chains of TiO6 octahedra, but to the geometry of tetrahedral anions and the alkaline cation arrangement in the structure channels, as well. The contribution of each of the three structural components depends on the crystal composition.
