Role of stoichiometric point defect in electric-field-poling lithium niobate

V. Bermúdez; L. Huang; D. Hui; S. Field; E. Diéguez

doi:10.1007/s003390000445

Role of stoichiometric point defect in electric-field-poling lithium niobate

V. Bermúdez^*, L. Huang, D. Hui, S. Field, E. Diéguez

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Non-congruent LiNbO₃ crystals has been used to determine the influence of the intrinsic defect density in the ferroelectric domain inversion mechanism. The poling processes have been carried out either at high temperature or at RT throughout the electric-field-poling technique. It is shown that the coercive field of LiNbO₃ crystals is strongly influenced by the intrinsic defect density in the crystals. Moreover it is shown that it is possible to realign the ferroelectric domain structure of near-stoichiometric LiNbO₃ crystals to prepare periodic poled structures which allows second harmonic generation at shorter wavelengths than with congruent crystals at a fixed wavelength.

Original language	English
Pages (from-to)	591-594
Number of pages	4
Journal	Applied Physics A: Materials Science and Processing
Volume	70
Issue number	5
DOIs	https://doi.org/10.1007/s003390000445
Publication status	Published - May 2000
Externally published	Yes

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abstract = "Non-congruent LiNbO3 crystals has been used to determine the influence of the intrinsic defect density in the ferroelectric domain inversion mechanism. The poling processes have been carried out either at high temperature or at RT throughout the electric-field-poling technique. It is shown that the coercive field of LiNbO3 crystals is strongly influenced by the intrinsic defect density in the crystals. Moreover it is shown that it is possible to realign the ferroelectric domain structure of near-stoichiometric LiNbO3 crystals to prepare periodic poled structures which allows second harmonic generation at shorter wavelengths than with congruent crystals at a fixed wavelength.",

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AU - Bermúdez, V.

AU - Huang, L.

AU - Hui, D.

AU - Field, S.

AU - Diéguez, E.

PY - 2000/5

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N2 - Non-congruent LiNbO3 crystals has been used to determine the influence of the intrinsic defect density in the ferroelectric domain inversion mechanism. The poling processes have been carried out either at high temperature or at RT throughout the electric-field-poling technique. It is shown that the coercive field of LiNbO3 crystals is strongly influenced by the intrinsic defect density in the crystals. Moreover it is shown that it is possible to realign the ferroelectric domain structure of near-stoichiometric LiNbO3 crystals to prepare periodic poled structures which allows second harmonic generation at shorter wavelengths than with congruent crystals at a fixed wavelength.

AB - Non-congruent LiNbO3 crystals has been used to determine the influence of the intrinsic defect density in the ferroelectric domain inversion mechanism. The poling processes have been carried out either at high temperature or at RT throughout the electric-field-poling technique. It is shown that the coercive field of LiNbO3 crystals is strongly influenced by the intrinsic defect density in the crystals. Moreover it is shown that it is possible to realign the ferroelectric domain structure of near-stoichiometric LiNbO3 crystals to prepare periodic poled structures which allows second harmonic generation at shorter wavelengths than with congruent crystals at a fixed wavelength.

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Role of stoichiometric point defect in electric-field-poling lithium niobate

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