Relationship between refractive indices and hydrogen concentration in proton exchanged LiNbO3 waveguides
Relationship between refractive indices and hydrogen concentration in proton exchanged LiNbO3 waveguides
复制标题
质子交换 LiNbO3 波导中折射率与氢浓度的关系
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
V. Fedorov
中科院分区：
文献类型：
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作者：
Y. Korkishko;V. Fedorov
质子交换LiNbO3光波导（HxLi1−xNbO3）表现出非常复杂的结构行为，这与已知的粉末不同。在HxLi1−xNbO3层中已经确定了七种晶相。提出了一种测定不同相态质子浓度的方法。晶体结构，氢浓度，和普通和非常的折射率之间的相关性已被实验确定，允许一个解释观察到的一些光学现象，并预测各种质子交换波导的特性。
Proton-exchanged LiNbO3 optical waveguides (HxLi1−xNbO3) exhibit very complex structural behavior which is different from that known for their powders. Seven crystallographic phases have been identified in the HxLi1−xNbO3 layers. A method to determine the proton concentration in different phases has been proposed. Correlation between the crystal structure, hydrogen concentration, and the ordinary and extraordinary refractive indices has been experimentally determined allowing one to explain some optical phenomena observed and to predict the characteristics of a great variety of proton exchanged waveguides.