Open AccessInfluence of trace amounts of boron on structural defects of lithium niobate crystal.
Author(s) -
Р. А. Титов,
N. V. Sidorov,
N. А. Teplyakova,
M. N. Palatnikov,
I. V. Biryukova
Publication year - 2020
Publication title -
trudy kolʹskogo naučnogo centra ran
Language(s) - English
Resource type - Journals
ISSN - 2307-5252
DOI - 10.37614/2307-5252.2020.3.4.042
Subject(s) - boron , lithium niobate , polarizability , materials science , lithium (medication) , impurity , raman spectroscopy , crystal (programming language) , raman scattering , inorganic chemistry , niobium , crystal structure , octahedron , analytical chemistry (journal) , crystallography , chemistry , optics , metallurgy , optoelectronics , molecule , medicine , physics , organic chemistry , chromatography , computer science , programming language , endocrinology
The analysis of structural particularities of nominally pure LiNbO3 : B grown with using of B2O3flux was performed by methods of Raman and photoinduced light scattering, infrared absorption andlaser conoscopy. It was established that the non-metallic element boron is included in the vacant tetrahedrals of LiNbO3crystal structure at trace amounts. In this case, boron substantially deforms the oxygen octahedra of the structure and changes their polarizability. It affects the nonlinear optical properties of the crystal. Boron, as an active complexing agent, structures the melt and aligns value of the distribution coefficients of lithium and niobium in the growing process. Boron in the tetrahedralsreduces both the number of NbLidefects and the content of multiply charged uncontrolled impurities in the crystal, enhancing the optical damage.