Comparative analysis of ferroelectric domain statistics via nonlinear diffraction in random nonlinear materials
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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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CitationWang, B., Switowski, K., Cojocaru, C., Roppo, V., Sheng, Y., Escalora, M., Kisielewski, J., Pawlak, D., Vilaseca, R., Akhouayri, H., Krolikowski, W., Trull, J. Comparative analysis of ferroelectric domain statistics via nonlinear diffraction in random nonlinear materials. "Optics express", 22 Gener 2018, vol. 26, núm. 2, p. 1083-1096.
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