Conoscopic Studies of Optical Homogeneity of the LiNbO3:Mg Crystals

被引：4

作者：

Palatnikov, M. ^{[1
]}

Pikoul, O. ^{[2
]}

Sidorov, N. ^{[1
]}

Makarova, O. ^{[1
]}

Bormanis, K. ^{[3
]}

机构：

[1] Kola Sci Ctr RAS, Inst Chem, Apatity, Russia

[2] Far Eastern State Transport Univ, Khabarovsk, Russia

[3] Univ Latvia, Inst Solid State Phys, Riga, Latvia

来源：

FERROELECTRICS | 2012年 / 436卷

关键词：

Lithium niobate; single crystals; conoscopic images; optical homogeneity;

D O I：

10.1080/10584587.2012.730953

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An essential modification of the method to observe large-scale conoscopic images is proposed. Divergent beam of wide-aperture radiation is formed by a diffuser placed before entrance of a lithium niobate crystal. The optical homogeneity of LiNbO3:Mg crystals is studied in a wide range of the admixture concentrations (0.01 - 5.5 mol.%). An inhomogeneous distribution of the admixture is found to increase with the admixture concentration being accompanied by growth bands, micro-defects, such as micro-domains, domain boundaries, and block structures particularly in parts of higher concentration gradients at the boundaries of the growth bands.

引用

页码：19 / 28

页数：10

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