• Characterization of dielectric spheres by spiral imaging 

    Petrov, Dimitri; Rahuel, Nicolás; Molina Terriza, Gabriel; Torner Sabata, Lluís (2012)
    Article
    Accés obert
    We study the spiral spectra scattered off transparent dielectric spheres when probed by different Laguerre–Gaussian light beams, carrying nested topological wavefront dislocations. We show that such scattering data may ...
  • Generation of arbitrary complex quasi-non-diffracting optical patterns 

    Ortiz Ambriz, Antonio; López Aguayo, Servando; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Petrov, Dimitri; Garcia Gracia, Hipolito; Gutierrez Vega, Julio Cesar; Torner Sabata, Lluís (2013-09)
    Article
    Accés restringit per política de l'editorial
    Due to their unique ability to maintain an intensity distribution upon propagation, non-diffracting light fields are used extensively in various areas of science, including optical tweezers, nonlinear optics and quantum ...
  • Observation of optical vortex streets in walking-second harmonic generation 

    Molina Terriza, Gabriel; Petrov, Dimitri; Recolons Martos, Jaume; Torner Sabata, Lluís (OPTICAL SOC AMER - (OSA), 2002-04-30)
    Article
    Accés obert
  • 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 ...