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Features of randomized electric-field assisted domain inversion in lithium tantalate

  • Autori: Stivala, S.; Buccheri, F.; Curcio, L.; Oliveri, R.; Busacca, A.; Assanto, A.
  • Anno di pubblicazione: 2011
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Nonlinear optics; Harmonic generation and mixing
  • OA Link:


We report on bulk and guided-wave second-harmonic generation via random Quasi-Phase-Matching in Lithium Tantalate. By acquiring the far-field profiles at several wavelengths, we extract statistical information on the distribution of the quadratic nonlinearity as well as its average period, both at the surface and in the bulk of the sample. By investigating the distribution in the two regions we demonstrate a non-invasive approach to the study of poling dynamics.