• Solitary-wave vortices in type II second-harmonic generation 

      Pérez Torres, Juan; Soto-Crespo, J M; Torner Sabata, Lluís; Petrov, Dimitri (1998-05)
      Article
      Accés restringit per política de l'editorial
      We find families of optical bright, vortex solitary waves in bulk quadratic nonlinear media under conditions for type II second-harmonic generation. We study the main properties of the families of solitary waves, including ...
    • Splitting of Light Beams with Phase dislocations into Solitons in Quadratic Nonlinear Media 

      Petrov, Dimitri; Santos Blanco, M. Concepción; Torner Sabata, Lluís (A. Hidalgo, 1997-05-31)
      Article
      Accés obert
      We investigate the propagation of intense light beams in bulk quadratic nonlinear crystals under conditions for second-harmonic generation. We show numerically that input light beams with a spiral phase front dislocation ...