TITLE

Surface domain engineering in congruent lithium niobate single crystals: A route to submicron periodic poling

AUTHOR(S)
Busacca, A. C.; Sones, C. L.; Apostolopoulos, V.; Eason, R. W.; Mailis, S.
PUB. DATE
December 2002
SOURCE
Applied Physics Letters;12/23/2002, Vol. 81 Issue 26, p4946
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We describe a technique for surface domain engineering in congruent lithium niobate single crystals. The method is based on conventional electric-field poling, but involves an intentional overpoling step that inverts all the material apart from a thin surface region directly below the patterned photoresist. The surface poled structures show good domain uniformity, and the technique has so far been applied to produce domain periods as small as ∼ 1 μm. The technique is fully compatible with nonlinear optical integrated devices based on waveguide structures.
ACCESSION #
8691554

 

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