Evaluation of the internal field in lithium niobate ferroelectric domains by an interferometric method

被引：44
作者：
de Angelis, M
De Nicola, S
Finizio, A
Pierattini, G
Ferraro, P
Grilli, S
Paturzo, M
机构：
[1] CNR, Ist Cibernet, I-80078 Pozzuoli, NA, Italy
[2] Ist Nazl Ott Applicata, Sez Napoli, I-80078 Pozzuoli, NA, Italy
来源：
APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 14期
关键词：
D O I：
10.1063/1.1797534
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the evaluation of internal electric field of a ferroelectric engineered-domain in a LiNbO3 wafer crystal by detecting optical path length variation with a noninvasive interferometric inspection method. The lithium niobate wafer has been patterned and subjected to electric field poling to obtain two antiparallel ferroelectric domains separated by a single domain wall. The crystal has been mounted into one arm of a Mach-Zehnder-type interferometer to study the phase map and evaluate the effects of domain reversion by a digital holographic technique. Evaluation of the internal field and consequent variation of the electro-optical properties of the different domains is analyzed. (C) 2004 American Institute of Physics.
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页码：2785 / 2787
页数：3
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