TY - JOUR
T1 - The effect of the ferroelectric domain walls in the scanning near field optical microscopy response of periodically poled ba2nanb5o15 and linbo3 crystals
AU - Han, T.P.J.
AU - Jaque, F.
AU - Lamela, J.
AU - Jaque, D.
AU - Lifante, G.
AU - Cusso, F.
AU - Kamiskii, A.A.
PY - 2009/1/28
Y1 - 2009/1/28
N2 - 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.
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
UR - http://dx.doi.org/10.1088/0953-8984/21/4/042201
U2 - 10.1088/0953-8984/21/4/042201
DO - 10.1088/0953-8984/21/4/042201
M3 - Article
SN - 0953-8984
VL - 21
SP - 1
EP - 4
JO - Journal of Physics: Condensed Matter
JF - Journal of Physics: Condensed Matter
IS - 4
ER -