Ara es mostren els items 21-27 de 27

  • Stabilization of two-dimensional solitons in cubic-saturable nonlinear lattices 

    Borovkova, Olga V.; Kartashov, Yaroslav; Torner Sabata, Lluís (2010-06-04)
    Article
    Accés restringit per política de l'editorial
    We consider soliton dynamics and stability in a nonlinear lattice formed by alternating domains with focusing cubic and saturable nonlinearities. We find that in such lattices, solitons centered on cubic domains may be ...
  • Stable vortex-soliton tori with multiple nested phase singularities in dissipative media 

    Borovkova, Olga V.; Lobanov, Valery E.; Kartashov, Yaroslav; Torner Sabata, Lluís (2012)
    Article
    Accés restringit per política de l'editorial
    We show the existence of stable two- and three-dimensional vortex solitons carrying multiple, spatially separated, single-charge topological dislocations nested in a common vortex-ring core. Such nonlinear states are ...
  • Stripe-like quasi-nondiffracting optical lattices 

    Kartashov, Yaroslav; López Aguayo, Servando; Vysloukh, Victor A.; Torner Sabata, Lluís (2011-05-09)
    Article
    Accés restringit per política de l'editorial
    We introduce stripe-like quasi-nondiffracting lattices that can be generated via spatial spectrum engineering. The complexity of the spatial shapes of such lattices and the distance of their almost diffractionless propagation ...
  • Three-dimensional hybrid vortex solitons 

    Driben, Rodislav; Kartashov, Yaroslav; Malomed, Boris A.; Meier, Torsten; Torner Sabata, Lluís (2014-06-16)
    Article
    Accés obert
    We show, by means of numerical and analytical methods, that media with a repulsive nonlinearity which grows from the center to the periphery support a remarkable variety of previously unknown complex stationary and dynamical ...
  • Topological light bullets supported by spatiotemporal gain 

    Lobanov, Valery E.; Borovkova, Olga V.; Kartashov, Yaroslav; Vysloukh, Victor A.; Torner Sabata, Lluís (2012-02-02)
    Article
    Accés restringit per política de l'editorial
    We reveal that the competition among diffraction, cubic nonlinearity, two-photon absorption, and gain localized in both space and time results in arrest of collapse, suppression of azimuthal modulation instabilities for ...
  • Two-dimensional solitons at interfaces between binary superlattices and homogeneous lattices 

    Heinrich, Matthias; Kartashov, Yaroslav; Ramírez, L. P. R.; Szameit, Alexander; Dreisow, Felix; Keil, R; Nolte, Stefan; Tünnermann, Andreas; Vysloukh, Victor A.; Torner Sabata, Lluís (2009-12)
    Article
    Accés restringit per política de l'editorial
    We report on the experimental observation of two-dimensional surface solitons residing at the interface between a homogeneous square lattice and a superlattice that consists of alternating “deep” and “shallow” waveguides. ...
  • Unbreakable PT symmetry of solitons supported by inhomogeneous defocusing nonlinearity 

    Kartashov, Yaroslav; Malomed, Boris A.; Torner Sabata, Lluís (OSA, 2014-09-24)
    Article
    Accés obert