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7 September 2011 Periodical poling of lithium niobate crystals with Li-enriched surface layer
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Abstract
We present two approaches for production of periodically poled lithium niobate crystals by surface modification of congruent crystals: first - by Li enrichment during annealing and second - by deposition a thin layer of stoichiometric lithium niobate film on the +Z face of a crystal. Both methods have allowed to create on the surface of congruent sample a layer with composition close to stoichiometric and to reduce a poling electric field without changing of the composition of crystal volume and thereby to keep all advantages of congruent crystal.
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A. R. Poghosyan, I. A. Ghambaryan, R. Guo, and E. S. Vardanyan "Periodical poling of lithium niobate crystals with Li-enriched surface layer", Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 812017 (7 September 2011); https://doi.org/10.1117/12.893038
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