The effect of MgO doping on optical properties of LiNbO3 single crystals

被引：33
|
作者：
Sen, P
Sen, PK
Bhatt, R
Kar, S
Shukla, V
Bartwal, KS [1 ]
机构：
[1] Ctr Adv Technol, Laser Mat Div, Dept Atom Energy, Indore 452013, India
[2] SGSITS, Dept Appl Phys, Indore 452003, India
[3] Ctr Adv Technol, Laser Phys Div, Indore 452013, India
来源：
SOLID STATE COMMUNICATIONS | 2004年 / 129卷 / 11期
关键词：
lithium mobate; Czochralski technique; photoluminescence; second harmonic generation; transmittance;
D O I：
10.1016/j.ssc.2003.11.050
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Undoped and MgO doped Lithium niobate single crystals were grown by the Czochralski technique. Comparative study of the optical properties of undoped and 7 mol% MgO doped LiNbO3 crystal was undertaken. The effect of doping on refractive indices as well as second harmonic generation has been experimentally analyzed. The results of the polarization characteristics of second harmonic generation (SHG) support the major contribution of Li-O bonds to optical nonlinearity. MgO doping reduces the number of localized excitons and the grown LiNbO3 crystal approaches the stoichiometric composition. This causes blue shift in the absorption edge of the crystals. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：747 / 752
页数：6
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