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

  • A 3D printed toolbox for opto-mechanical components 

    Salazar Serrano, Luis Jose; Pérez Torres, Juan; Valencia, Alejandra (2017-01-18)
    Article
    Accés obert
    In this article we present the development of a set of opto-mechanical components (a kinematic mount, a translation stage and an integrating sphere) that can be easily built using a 3D printer based on Fused Filament ...
  • A measure of flow vorticity with twisted beams of light 

    Belmonte Molina, Aniceto; Rosales Guzmán, Carmelo; Pérez Torres, Juan (Curran, 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The measurement of vorticity, a parameter providing local measurements of rotation at every point in a flow, would greatly assist research fields as diverse as biology microfluidics, complex motions in the oceanic and ...
  • Vector mixed-gap surface solitons 

    Kartashov, Yaroslav V.; Ye, F; Torner Sabata, Lluís (2006-05)
    Article
    Accés restringit per política de l'editorial
    We elucidate the properties of mixed-gap vector surface solitons supported by the interface between a uniform medium and an optical lattice imprinted in a Kerr-type nonlinear media. The components of such mixed-gap solitons ...
  • Sensitivity study of the microwave spiralimetric imaging 

    Jofre Roca, Lluís; Blanch Boris, Sebastián; Cardama Aznar, Ángel; Rius Casals, Juan Manuel; Torner Sabata, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2005)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The use of the spiral modes-electromagnetically related to the orbital momentum of the photons- at microwave frequencies for imaging purposes is studied and some preliminary numerical and experimental results for basic ...
  • Observation of Dyakonov surface waves 

    Takayama, Osamu; Crasovan, I; Artigas García, David; Torner Sabata, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Summary form only given. A special type of surface wave was predicted by M. I. Dyakonov in 1988. Such waves exist under special conditions at the interface of transparent anisotropic materials, and hens they are lossless. ...
  • Management of the angular momentum of light: preparation of photons in multidimensional vector states of angular momentum 

    Molina Terriza, Gabriel; Pérez Torres, Juan; Torner Sabata, Lluís (2002-01)
    Article
    Accés restringit per política de l'editorial
    We put forward schemes to prepare photons in multidimensional vector states of orbital angular momentum. We show realizable light distributions that yield prescribed states with finite or infinite normal modes. In particular, ...
  • Ultrabroadband biphotons generated via chirped quasi-phase-matched optical parametric down-conversion 

    Nasr, M B; Carrasco, S; Saleh, B E A; Sergienko, A V; Teich, M C; Pérez Torres, Juan; Torner Sabata, Lluís; Hum, D S; Fejer, M M (2008-05)
    Article
    Accés restringit per política de l'editorial
    We generate ultrabroadband biphotons via the process of spontaneous parametric down-conversion (SPDC) in quasi-phase-matched nonlinear gratings that have a linearly chirped wave vector. By using these ultrabroadband biphotons ...
  • Soliton excitation in waveguide arrays with an effective intermediate dimensionality 

    Szameit, Alexander; Kartashov, Yaroslav V.; Dreisow, Felix; Heinrich, Matthias; Pertsch, T; Nolte, Stefan; Tunnermann, A F Lederer; Vysloukh, Victor A.; Lederer, F.; Torner Sabata, Lluís (2009-01)
    Article
    Accés restringit per política de l'editorial
    We reveal and observe experimentally significant modifications undertaken by discrete solitons in waveguide lattices upon the continuous transformation of the lattice structure from one-dimensional to two-dimensional. Light ...
  • Inhibition of light tunneling in waveguide arrays 

    Szameit, Alexander; Kartashov, Yaroslav V.; Dreisow, Felix; Heinrich, Matthias; Pertsch, T; Nolte, Stefan; Tunnermann, A; Vysloukh, Victor A.; Lederer, F; Torner Sabata, Lluís (2009-04)
    Article
    Accés restringit per política de l'editorial
    We report the observation of almost perfect light tunneling inhibition at the edge and inside laser-written waveguide arrays due to band collapse. When the refractive index of the guiding channels is harmonically modulated ...
  • Observation of two-dimensional spatial solitary waves in a ¿ (2) medium 

    Torruellas, William; Stegeman, George; Torner Sabata, Lluís (IEEE Press, 1995)
    Text en actes de congrés
    Accés obert
    Cascaded second order nonlinear processes offer a new range of opportunities. Indeed we have shown that under near phase matching conditions, the associated nonlinear phase distortion to the fundamental wave depletion ...

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