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. and Jaque, F. and Lamela, J. and Jaque, D. and Lifante, G. and Cusso, F. and Kamiskii, A.A. (2009) The effect of the ferroelectric domain walls in the scanning near field optical microscopy response of periodically poled ba2nanb5o15 and linbo3 crystals. Journal of Physics: Condensed Matter, 21 (4). pp. 1-4. ISSN 0953-8984 (http://dx.doi.org/10.1088/0953-8984/21/4/042201)

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.

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• Item metadata

  Item type:	Article
  ID code:	19341
  Dates:	Date Event 28 January 2009 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Strathprints Administrator
  Date deposited:	01 Jun 2010 14:31
  Last modified:	08 Apr 2024 17:47
  URI:	https://strathprints.strath.ac.uk/id/eprint/19341