Scientific Results

In situ investigation of periodic poling in congruent LiNbO3 by quantitative interference microscopy

Year: 2008

Authors: Grilli S., Paturzo M., Miccio L., Ferraro P.

Autors Affiliation: Istituto Nazionale di Ottica Applicata del CNR (CNR-INOA), Via Campi Flegrei 34,80078 Pozzuoli (NA), Italy

Abstract: The dynamic evolution of the periodic poling into resist patterned LiNbO3 samples is investigated here by measuring the variation of the optical phase shift distribution across domain walls. In situ quantitative and high-contrast imaging is obtained through an interference microscope based on digital holography. Phase map movies of the evolving domains are presented and discussed. The method provides remarkable in situ information about the poling of ferroelectric crystals in the case of insulating constraints, under different voltage and resist conditions, providing a deeper understanding of the electric field periodic poling.

Journal/Review: MEASUREMENT SCIENCE & TECHNOLOGY

Volume: 19 (7)      Pages from: 074008  to: 074008

KeyWords: lithium niobate
DOI: 10.1088/0957-0233/19/7/074008

Citations: 42
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English