UV laser-induced poling inhibition in proton exchanged LiNbO $$_{3}$$ 3 crystals

The applicability of the UV laser-induced poling inhibition method for ferroelectric domain engineering in proton exchanged lithium niobate planar waveguides is investigated. Our results indicate that intense UV irradiation of proton exchanged lithium niobate samples can, indeed, produce poling inhi...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2017-05, Vol.123 (5), p.1-5, Article 158
Main Authors: Zisis, G., Manzo, M., Gallo, K., Soergel, E., Mailis, S.
Format: Article
Language:English
Subjects:
Applied physics
Concentration gradient
Ferroelectric domains
Ferroelectricity
Irradiation
Lasers
Lithium niobates
Planar waveguides
Protons
Refractivity
Ultraviolet lasers
Ultraviolet radiation
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Summary:The applicability of the UV laser-induced poling inhibition method for ferroelectric domain engineering in proton exchanged lithium niobate planar waveguides is investigated. Our results indicate that intense UV irradiation of proton exchanged lithium niobate samples can, indeed, produce poling inhibited domains in this material under certain irradiation conditions. However, there is strong indication that the temperature gradient that is formed during UV irradiation modifies the local proton concentration leading to changes in the refractive index profile of the original planar waveguide.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-017-6734-7