Spatial rogue waves in photorefractive SBN crystals

  • Hermann-Avigliano C
  • Salinas I
  • Rivas D
  • et al.
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Abstract

We report on the excitation of large-amplitude waves, with a probability of around 1% of total peaks, on a photorefractive SBN crystal by using a simple experimental setup at room temperature. We excite the system using a narrow Gaussian beam and observe different dynamical regimes tailored by the value and time rate of an applied voltage. We identify two main dynamical regimes: a caustic one for energy spreading and a speckling one for peak emergence. Our observations are well described by a two-dimensional Schrödinger model with saturable local nonlinearity.

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Hermann-Avigliano, C., Salinas, I. A., Rivas, D. A., Real, B., Mančić, A., Mejía-Cortés, C., … Vicencio, R. A. (2019). Spatial rogue waves in photorefractive SBN crystals. Optics Letters, 44(11), 2807. https://doi.org/10.1364/ol.44.002807

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