Enviaments recents

  • 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 ...
  • Anderson cross-localization 

    Stützer, Simon; Kartashov, Yaroslav V.; Vysloukh, Victor A.; Tünnermann, A.; Nolte, Stefan; Lewenstein, Maciej; Torner Sabata, Lluís; Szameit, Alexander (2012)
    Article
    Accés restringit per política de l'editorial
    We report Anderson localization in two-dimensional optical waveguide arrays with disorder in waveguide separation introduced along one axis of the array, in an uncorrelated fashion for each waveguide row. We show that the ...
  • Spatial solitons in optofluidic waveguide arrays with focusing ultrafast Kerr nonlinearity 

    Vieweg, M.; Gissibl, T.; Kartashov, Yaroslav V.; Torner Sabata, Lluís; Giessen, H. (2012)
    Article
    Accés restringit per política de l'editorial
    We present an optofluidic nonlinear waveguide array that is fabricated by selectively filling several strands of a photonic crystal fiber with the liquid CCl4, which exhibits a large focusing ultrafast Kerr nonlinearity. ...
  • Coupling plasmons and dyakonons 

    Takayama, Osamu; Artigas García, David; Torner Sabata, Lluís (2012-06-01)
    Article
    Accés restringit per política de l'editorial
    We study the coupling of plasmons and Dyakonov surface waves propagating at the interfaces between isotropic-birefringent-metal layered structures. Efficient coupling is shown to occur with a proper choice of the crystal ...
  • Stable bright and vortex solitons in photonic crystal fibers with inhomogeneous defocusing nonlinearity 

    Lobanov, Valery E.; Borovkova, Olga V.; Kartashov, Yaroslav V.; Malomed, Boris A.; Torner Sabata, Lluís (2012-06-01)
    Article
    Accés restringit per política de l'editorial
    We predict that a photonic crystal fiber whose strands are filled with a defocusing nonlinear medium can support stable bright solitons and also vortex solitons if the strength of the defocusing nonlinearity grows toward ...
  • Tunable ultrafast nonlinear optofluidic coupler 

    Vieweg, M.; Pricking, S.; Gissibl, T.; Kartashov, Yaroslav V.; Torner Sabata, Lluís; Giessen, H. (2012-03-15)
    Article
    Accés restringit per política de l'editorial
    We present an optofluidic nonlinear coupler fabricated by selective filling of two strands of a photonic crystal fiber with the liquid CCl 4 which exhibits a large ultrafast Kerr nonlinearity. We demonstrate power dependent ...
  • Rotura de haces opticos con dislocaciones de fase y formacion de solitones en medios no lineales cuadraticos 

    Petrov, D V; Torner Sabata, Lluís; Santos, M C (1997-06)
    Article
    Accés obert
  • Azimuthal instabilities and self-breaking of beams into sets of solitons in bulk second-harmonic generation 

    Torner Sabata, Lluís; Petrov, D V (Institution of Electrical Engineers, 1997-03)
    Article
    Accés obert
    Optical harmonic generation
  • Splitting of light beams with spiral phase dislocations into solitons in bulk quadratic nonlinear media 

    Torner Sabata, Lluís; Petrov, D V (1997-08)
    Article
    Accés restringit per política de l'editorial
    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 dislocation self-split ...
  • Stationary walking solitons in bulk quadratic nonlinear media 

    Mihalache, Dumitru; Mazilu, D; Crasonavn, L C; Torner Sabata, Lluís (1997-04)
    Article
    Accés restringit per política de l'editorial
    We study the mutual trapping of fundamental and second-harmonic light beams propagating in bulk quadratic nonlinear media in the presence of Poynting vector beam walk-off. We show numerically the existence of a two-parameter ...

Mostra'n més