La recerca d'avantguarda en les aplicacions de les ciències i tecnologies de la llum a diversos camps, amb èmfasi en la biofotònica, l'òptica quàntica i els fenòmens i dispositius de control de llum amb llum.

http://futur.upc.edu/FOTONICA

Enviaments recents

  • Self-splitting of beams into spatial solitons in planar waveguides made of quadratic nonlinear media 

    Perez, J; Torner Sabata, Lluís (1997-09)
    Article
    Accés restringit per política de l'editorial
    The propagation of intense light beams in planar optical waveguides made of quadratic nonlinear media under conditions for second-harmonic generation is investigated. It is shown numerically that under appropriate conditions, ...
  • Soliton evolution in quasi-phase-matched second-harmonic generation 

    Torner Sabata, Lluís; Stegeman, G I (1997-11)
    Article
    Accés restringit per política de l'editorial
    We investigate the formation and evolution of spatial solitons with light beams propagating in quadratic nonlinear media under conditions for second-harmonic generation in quasi-phase-matched samples. We study the properties ...
  • Asymmetrical splitting of higher-order optical solitons induced by quintic nonlinearity 

    Artigas García, David; Torner Sabata, Lluís; Pérez Torres, Juan; Akhmediev, Juan P Torres I Nail N (1997-11)
    Article
    Accés restringit per política de l'editorial
    We address the effect of quintic nonlinearities in the propagation of optical solitons in cubic nonlinear media. Our focus is on the decay of higher-order solitons in the presence of self-defocusing quintic perturbations. ...
  • Second-harmonic generation by intense beams containing phase dislocations:self-breaking into sets of solitons 

    Petrov, D V; Torner Sabata, Lluís (1997-12)
    Article
    Accés restringit per política de l'editorial
    Second-harmonic generation of light in bulk quadratic non-linear media with intense input beams containing phase dislocations is studied numerically under conditions for TypeI phase-matching. We investigate how, above a ...
  • Walking solitons in type II second-harmonic generation 

    Mihalache, Dumitru; Mazilu, D; Crasovan, L C; Torner Sabata, Lluís (1997-12)
    Article
    Accés restringit per política de l'editorial
    We find the families of spatial walking solitons propagating in quadratic nonlinear media under conditions for type II second-harmonic generation in the presence of Poynting vector walk-off between the interacting beams. ...
  • Walking solitons 

    Torner Sabata, Lluís; Santos Blanco, M. Concepción; Mihalache, Dumitru; Mazilu, D; Crasovan, L C (1997-12)
    Article
    Accés restringit per política de l'editorial
    By and large, optical
  • A game of billiards with spatial solitary waves in ktp 

    Torruellas, W; Torner Sabata, Lluís (1996-03)
    Article
    Accés restringit per política de l'editorial
  • On fluctuations in interfacial fluid systems 

    Torner Sabata, Lluís; Rubí Capaceti, José Miguel; Díaz Guilera, Albert (1989-06)
    Article
    Accés restringit per política de l'editorial
    We study the propagation of the temperature fluctuations in a system in the presence of an interface. Such fluctuations originate from surface noise sources which are introduced through the random parts of the interfacial ...
  • Mode count in planar graded-index waveguides 

    Torner Sabata, Lluís; Canal Bienzobas, Fernando; March, L. de (1988)
    Article
    Accés restringit per política de l'editorial
    The cut-off properties for the TE modes of planar graded-index waveguides have been analysed in terms of the usual normalised waveguide parameters by using the multilayer technique. High accuracy has been achieved. The ...
  • Soliton excitation and mutual locking of light beams in bulk quadratic nonlinear crystals 

    Torner Sabata, Lluís; Wright, E M (1996-05)
    Article
    Accés restringit per política de l'editorial
    The mutual trapping and locking of intense fundamental and second-harmonic continuous-wave light beams propagating in bulk crystals with large second-order nonlinearities is investigated. We report the outcome of a ...

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