Enviaments recents

  • Three-dimensional topological solitons in PT-symmetric optical lattices 

    Kartashov, Yaroslav V.; Hang, Chao; Huang, Guoxiang; Torner Sabata, Lluís (2016-09-21)
    Article
    Accés obert
    We address the properties of fully three-dimensional solitons in complex parity-time (PT)-symmetric periodic lattices with focusing Kerr nonlinearity, and uncover that such lattices can stabilize both fundamental and ...
  • Ultrasensitive interferometric on-chip microscopy of transparent objects 

    Terborg, Roland A.; Pello, Josselin; Mannelli, Ilaria; Pérez Torres, Juan; Pruneri, Valerio (2016-06)
    Article
    Accés obert
    Light microscopes can detect objects through several physical processes, such as scattering, absorption, and reflection. In transparent objects, these mechanisms are often too weak, and interference effects are more suitable ...
  • Frequency conversion of structured light 

    Steinlechner, Fabian; Hermosa, Nathaniel; Pruneri, Valerio; Pérez Torres, Juan (Macmillan Publishers, 2016-02-15)
    Article
    Accés obert
    Coherent frequency conversion of structured light, i.e. the ability to manipulate the carrier frequency of a wave front without distorting its spatial phase and intensity profile, provides the opportunity for numerous novel ...
  • Weak value amplification: a view from quantum estimation theory that highlights what it is and what isn’t 

    Pérez Torres, Juan; Salazar Serrano, Luis Jose (Macmillan Publishers, 2016-02-01)
    Article
    Accés obert
    Weak value amplification (WVA) is a concept that has been extensively used in a myriad of applications with the aim of rendering measurable tiny changes of a variable of interest. In spite of this, there is still an on-going ...
  • Rotating vortex clusters in media with inhomogeneous defocusing nonlinearity 

    Kartashov, Yaroslav V.; Malomed, Boris A.; Vysloukh, Victor A.; Belic, Milivoj R.; Torner Sabata, Lluís (2017-02-01)
    Article
    Accés restringit per política de l'editorial
    We show that media with inhomogeneous defocusing cubic nonlinearity growing toward the periphery can support a variety of stable vortex clusters nested in a common localized envelope. Nonrotating symmetric clusters are ...
  • 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 ...
  • 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 ...
  • 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 ...

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