Recent Submissions

  • Quantifying sudden changes in dynamical systems using symbolic networks 

    Masoller Alonso, Cristina; Hong, Yanhua; Ayad, Sarah; Gustave, Francois; Barland, Stéphane; Pons Rivero, Antonio Javier; Gómez, Sergio; Arenas, Alex (2015-02-24)
    Article
    Open Access
    We characterize the evolution of a dynamical system by combining two well-known complex systems' tools, namely, symbolic ordinal analysis and networks. From the ordinal representation of a time series we construct a network ...
  • Ultrashort pulse chirp measurement via transverse second-harmonic generation in strontium barium niobate crystal 

    Trull Silvestre, José Francisco; Sola, Ïñigo; Wang, Bingxia; Parra, Albert; Krolikowski, W.; Sheng, Y.; Vilaseca Alavedra, Ramon; Cojocaru, Crina (2015-06-01)
    Article
    Open Access
    Pulse compression in dispersive strontium barium niobate crystal with a random size and distribution of the anti-parallel orientated nonlinear domains is observed via transverse second harmonic generation. The dependence ...
  • Acoustically penetrable sonic crystals based on fluid-like scatterers 

    Cebrecos, A.; Romero García, Vicenç; Pico Vila, Rubén; Sánchez Morcillo, Victor José; Botey Cumella, Muriel; Herrero Simon, Ramon; Cheng, Yu Chieh; Staliunas, Kestutis (2015-01-21)
    Article
    Open Access
    We propose a periodic structure that behaves as a fluid-fluid composite for sound waves, where the building blocks are clusters of rigid scatterers. Such building-blocks are penetrable for acoustic waves, and their properties ...
  • Exact detection of direct links in networks of interacting dynamical units 

    Rubido, Nicolas; Marti, Arturo; Bianco-Martinez, Ezequiel; Grebogi, Celso; Baptista, Murilo; Masoller Alonso, Cristina (2014-09)
    Article
    Open Access
    The inference of an underlying network topology from local observations of a complex system composed of interacting units is usually attempted by using statistical similarity measures, such as cross-correlation (CC) and ...
  • Flat focusing mirror 

    Cheng, Yu Chieh; Kicas, Simonas; Trull Silvestre, José Francisco; Peckus, Martynas; Cojocaru, Crina; Vilaseca Alavedra, Ramon; Drazdys, Ramutis; Staliunas, Kestutis (MACMILLAN PUBLISHERS LIMITED, 2014-09-17)
    Article
    Open Access
    The control of spatial propagation properties of narrow light beams such as divergence, focusing or imaging are main objectives in optics and photonics. In this letter, we propose and demonstrate experimentally a flat ...
  • Polarization switching and hysteresis in vertical-cavity surface-emitting lasers subject to orthogonal optical injection 

    Salvide, Matias Fernando; Masoller Alonso, Cristina; Torre, Maria Susana (2014-10-01)
    Article
    Restricted access - publisher's policy
    We study polarization switching and hysteresis in a vertical-cavity surface-emitting laser (VCSEL) subject to an orthogonal optical injection, such that the polarization of the injected light is perpendicular to that of ...
  • Suppression of modulation instability in broad area semiconductor amplifiers 

    Kumar, Shubham; Herrero Simon, Ramon; Botey Cumella, Muriel; Staliunas, Kestutis (2014-10-01)
    Article
    Restricted access - publisher's policy
    We show that a two-dimensional periodic modulation of the pump profile (modulation both along and perpendicular to the optical axis) can suppress the modulation instability in broad emission area semiconductor amplifiers. ...
  • Collective stochastic coherence and synchronizability in weighted scale-free networks 

    Balenzuela, Pablo; Rue Queralt, Pau; Boccaletti, Stefano; García Ojalvo, Jordi (2014-01-21)
    Article
    Open Access
    Coupling frequently enhances noise-induced coherence and synchronization in interacting nonlinear systems, but it does so separately. In principle collective stochastic coherence and synchronizability are incompatible ...
  • Gap soliton in a waveguide array with a saturating defocusing nonlinearity 

    Gaizzuskas, E; Savickas, A.; Staliunas, Kestutis (2014-03-01)
    Article
    Restricted access - publisher's policy
    We investigate radiation of the solitary waves in the first band gap of the waveguide array with a defocusing nonlinearities of different types (Kerr nonlinearity and saturating nonlinearity). We confirm recent findings ...
  • Beam focusing in reflections from flat subwavelength diffraction gratings 

    Cheng, Yu Chieh; Redondo, Javier; Staliunas, Kestutis (2014-03-10)
    Article
    Open Access
    We predict that narrow beams, reflecting from flat subwavelength diffraction gratings, can focus. The effect is shown for the beams of electromagnetic radiation; however, it should be observable for beams of waves of ...

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