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Optical Engineering

Interferometric measurement of the internal field of lithium niobate without high-voltage electric field poling
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Paper Abstract

A simple interferometric technique for measurement of the internal field (IF) in a ferroelectric crystal has been proposed. This technique has several advantages over the other methods used previously for evaluation of IFs in ferroelectric crystals. Here, the electro-optic property of lithium niobate is exploited for quantitative analysis of its IF. The strength of IF obtained using this technique lies within the range given in the literature. However, at frustrated domain inversion state, the measured value of IF shows a reduced value. A possible reason for this reduction based on the defect model has been discussed.

Paper Details

Date Published: 12 May 2014
PDF: 6 pages
Opt. Eng. 53(5) 054105 doi: 10.1117/1.OE.53.5.054105
Published in: Optical Engineering Volume 53, Issue 5
Show Author Affiliations
Ranjit Das, Univ. of Calcutta (India)
Rajib Chakraborty, Univ. of Calcutta (India)

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