Structural disorder and optical properties of congruent lithium niobate crystals doped with zink and boron

被引：10

作者：

Sidorov, N. V. ^{[1
]}

Palatnikov, M. N. ^{[1
]}

Yanichev, A. A. ^{[1
]}

Titov, R. A. ^{[1
]}

Teplyakova, N. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Tananaev Inst Chem & Technol Rare Elements & Mine, Kola Sci Ctr, Apatity 184209, Russia

来源：

OPTICS AND SPECTROSCOPY | 2016年 / 121卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

CATIONIC SUBLATTICE; SINGLE-CRYSTALS; HOMOGENEITIES; SCATTERING; GROWTH; UNITS;

D O I：

10.1134/S0030400X16070195

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

From the concentration dependence of the widths and intensities of Raman lines and from the patterns of photoinduced light scattering, it is found that the mechanism of incorporation of Zn2+ cations into the LiNbO3 crystal structure changes with increasing concentration of zinc in the melt, which leads to an abrupt anisotropic expansion of oxygen octahedra along the polar axis. In this case, the number of kinks in the concentration dependence of linewidths (5) considerably exceeds the number of concentration threshold (2) known from the literature. It is shown that B3+ ions almost do not enter the cationic sublattice of the LiNbO3 crystal but changes the melt structure, so that the LiNbO3:B crystal is characterized by a high structural and optical homogeneity and a low photorefractive effect.

引用

页码：36 / 44

页数：9

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[1] Structural disorder and optical properties of congruent lithium niobate crystals doped with zink and boron
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[J]. Optics and Spectroscopy, 2016, 121 : 36 - 44
[2] Optical Properties and Defects of Congruent Crystals of Doubly Doped Lithium Niobate
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