Comparative analysis of ferroelectric domain statistics via nonlinear diffraction in random nonlinear materials
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Wang, B
Switkowski, Krzysztof
Cojocaru, Crina
Roppo, V.
Sheng, Yan
Scalora, Michael
Kisielewski, J
Pawlak, D
Vilaseca, Ramon
Akhouayri, H.
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Optical Society of America
Abstract
We present an indirect, non-destructive optical method for domain statistic
characterization in disordered nonlinear crystals having homogeneous refractive index and
spatially random distribution of ferroelectric domains. This method relies on the analysis of
the wave-dependent spatial distribution of the second harmonic, in the plane perpendicular to
the optical axis in combination with numerical simulations. We apply this technique to the
characterization of two different media, Calcium Barium Niobate and Strontium Barium
Niobate, with drastically different statistical distributions of ferroelectric domains.
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Optics Express
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Open Access
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