Precision nanoscale domain engineering of lithium niobate via UV laser induced inhibition of poling

C. L. Sones, A. C. Muir, Y. J. Ying, S. Mailis, R. W. Eason, T. Jungk, Á Hoffmann, E. Soergel

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

Abstract

Continuous wave ultraviolet laser irradiation at λ=244 nm on the +z face of undoped and MgO doped congruent lithium niobate single crystals has been observed to inhibit ferroelectric domain inversion. The inhibition occurs directly beneath the illuminated regions, in a depth greater than 100 nm during subsequent electric field poling of the crystal. Domain inhibition was confirmed by both differential domain etching and piezoresponse force microscopy. This effect allows the formation of arbitrarily shaped domains in lithium niobate and forms the basis of a high spatial resolution microstructuring approach when followed by chemical etching.

Original languageEnglish
Article number072905
JournalApplied Physics Letters
Volume92
Issue number7
DOIs
Publication statusPublished - 2008
Externally publishedYes

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