The effect of the ferroelectric domain walls in the scanning near field optical microscopy response of periodically poled ba2nanb5o15 and linbo3 crystals

T.P.J. Han, F. Jaque, J. Lamela, D. Jaque, G. Lifante, F. Cusso, A.A. Kamiskii

Research output: Contribution to journalArticle

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Abstract

A study of Ba2NaNb5O15 and LiNbO3 crystals with periodic ferroelectric domain structures using the scanning near field optical microscopy technique is reported. Optical contrast is observed in the regions of ferroelectric domain boundaries and it is analysed using beam propagation method modelling. This reveals that the optical contrast, a consequence of changes in the refractive index, is not due to variation of the waveguide-coupling efficiency, and supports the hypothesis that it is associated with the domain array, which is related to the size of the domain.
LanguageEnglish
Pages1-4
Number of pages3
JournalJournal of Physics: Condensed Matter
Volume21
Issue number4
DOIs
Publication statusPublished - 28 Jan 2009

Fingerprint

Near field scanning optical microscopy
Domain walls
Ferroelectric materials
domain wall
near fields
microscopy
Crystals
scanning
crystals
Refractive index
Waveguides
refractivity
waveguides
lithium niobate

Keywords

  • ferroelectric domain walls
  • Ba2NaNb5O15
  • LiNbO3
  • crystals

Cite this

Han, T.P.J. ; Jaque, F. ; Lamela, J. ; Jaque, D. ; Lifante, G. ; Cusso, F. ; Kamiskii, A.A. / The effect of the ferroelectric domain walls in the scanning near field optical microscopy response of periodically poled ba2nanb5o15 and linbo3 crystals. In: Journal of Physics: Condensed Matter. 2009 ; Vol. 21, No. 4. pp. 1-4.
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The effect of the ferroelectric domain walls in the scanning near field optical microscopy response of periodically poled ba2nanb5o15 and linbo3 crystals. / Han, T.P.J.; Jaque, F.; Lamela, J.; Jaque, D.; Lifante, G.; Cusso, F.; Kamiskii, A.A.

In: Journal of Physics: Condensed Matter, Vol. 21, No. 4, 28.01.2009, p. 1-4.

Research output: Contribution to journalArticle

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AU - Han, T.P.J.

AU - Jaque, F.

AU - Lamela, J.

AU - Jaque, D.

AU - Lifante, G.

AU - Cusso, F.

AU - Kamiskii, A.A.

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AB - A study of Ba2NaNb5O15 and LiNbO3 crystals with periodic ferroelectric domain structures using the scanning near field optical microscopy technique is reported. Optical contrast is observed in the regions of ferroelectric domain boundaries and it is analysed using beam propagation method modelling. This reveals that the optical contrast, a consequence of changes in the refractive index, is not due to variation of the waveguide-coupling efficiency, and supports the hypothesis that it is associated with the domain array, which is related to the size of the domain.

KW - ferroelectric domain walls

KW - Ba2NaNb5O15

KW - LiNbO3

KW - crystals

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