Spatially incoherent modulational instability in a non local medium
  We investigate one-dimensional transverse modulational instability in a non local medium excited with a spatially incoherent source. Employing undoped nematic liquid crystals in a planar pre-tilted configuration, we investigate the role of the spectral broadening induced by incoherence in conjunction with the spatially non local molecular reorientation. The phenomenon is modeled using the Wigner transform. 
Marco Peccianti, Claudio Conti, Emiliano Alberici and Gaetano Assanto