Periodical poling of lithium niobate crystals with Li-enriched surface layer

被引：0
|
作者：
Poghosyan, A. R. [1 ]
Ghambaryan, I. A. [1 ]
Guo, R. [2 ]
Vardanyan, E. S. [1 ]
机构：
[1] Inst Phys Res, Ashtarak 2, Armenia
[2] Univ Texas San Antonio, San Antonio, TX 78249 USA
来源：
PHOTONIC FIBER AND CRYSTAL DEVICES: ADVANCES IN MATERIALS AND INNOVATIONS IN DEVICE APPLICATIONS V | 2011年 / 8120卷
基金：
美国国家科学基金会;
关键词：
Nonlinear optic materials; lithium niobate crystals; periodical poling;
D O I：
10.1117/12.893038
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present two approaches for production of periodically poled lithium niobate crystals by surface modification of congruent crystals: first - by Li enrichment during annealing and second - by deposition a thin layer of stoichiometric lithium niobate film on the +Z face of a crystal. Both methods have allowed to create on the surface of congruent sample a layer with composition close to stoichiometric and to reduce a poling electric field without changing of the composition of crystal volume and thereby to keep all advantages of congruent crystal.
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页数：6
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