Ara es mostren els items 1-20 de 129

    • 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 ...
    • Arresting wave collapse by wave self-rectification 

      Crasovan, L C; Pérez Torres, Juan; Mihalache, Dumitru; Torner Sabata, Lluís (2003-08)
      Article
      Accés restringit per política de l'editorial
      We put forward a mechanism for tailoring, and even arresting, the collapse of wave packets in nonlinear media, whose dynamics is governed by nonlocal two-dimensional nonlinear Schrödinger-like equations. The key ingredient ...
    • 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. ...
    • Break-up of spatial solitons by cascading 

      Pérez Torres, Juan; Torner Sabata, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 1996)
      Text en actes de congrés
      Accés obert
    • Broadband light generation by noncollinear parametric down-conversion 

      Carrasco, S; Nars, M B; Sergienko, A; Saleh, B E A; Teich, M C; Pérez Torres, Juan; Torner Sabata, Lluís (2006-01)
      Article
      Accés restringit per política de l'editorial
      Broadband light generation is demonstrated by noncollinear spontaneous parametric downconversion with a cw pump laser. By use of a suitable noncollinear phase-matching geometry and a tightly focused pump beam, downconverted ...
    • Coherent delocalization: views of entanglement in different scenarios 

      León-Montiel, Roberto de J.; Vallès, Adam; Moya-Cessa, H. M.; Pérez Torres, Juan (IOP, 2015-07-21)
      Article
      Accés obert
      The concept of entanglement was originally introduced to explain correlations existing between two spatially separated systems, that cannot be described using classical ideas. Interestingly, in recent years, it has been ...
    • Complex light-assisted optical metrology techniques 

      Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The on-demand tailoring of the properties of light, such as phase, polarization or spatial shape, has completely changed the landscape of photonic-based applications. In this way, complex light fields have become an ...
    • Conmutacion totalmente optica de ondas guiadas en medios virefring. 

      Santos Blanco, M. Concepción; Pérez Torres, Juan; Torner Sabata, Lluís (1993)
      Text en actes de congrés
      Accés obert
      A new kind of tunable all-optical guided-wave thresholding device using waveguides consisting of both birefringent linear media and isotropic nonlinear media is discussed. The behavior of the lower threshold with a suitable ...
    • Controllable patterns of parametric solitons 

      Minardi, S; Molina Terriza, Gabriel; Bramati, A; Ditrapani, P; Torner Sabata, Lluís; Pérez Torres, Juan; Petrov, D V; Soto-Crespo, J M (2001-12)
      Article
      Accés restringit per política de l'editorial
    • Demonstration of a highly-sensitive tunable beam displacer with no use of beam deflection based on the concept of weak value amplification 

      Salazar-Serrano, Luis José; Guzmán, David A.; Valencia, Alejandra; Pérez Torres, Juan (OSA, 2015-04-20)
      Article
      Accés obert
      We report the implementation of a highly sensitive tunable beam displacer based on the concept of weak value amplification, that allows to displace the centroid of a Gaussian beam a distance much smaller than its beam width ...
    • Demonstration of a highly-sensitive tunable beam displacer with no use of beam deflection based on the concept of weak value amplification 

      Salazar Serrano, Luis Jose; Guzman, David A; Valencia, Alejandra; Pérez Torres, Juan (2015-04-10)
      Article
      Accés restringit per política de l'editorial
      We report the implementation of a highly sensitive tunable beam displacer based on the concept of weak value amplification, that allows to displace the centroid of a Gaussian beam a distance much smaller than its beam width ...
    • Diagrammatic analysis of nonlinear planar waveguides 

      Pérez Torres, Juan; Torner Sabata, Lluís (1994-01)
      Article
      Accés restringit per política de l'editorial
      We show that universal V–b diagrams provide a powerful tool for analyzing the properties of nonlinear TE-polarized waves guided by optical planar structures. Here we focus on a waveguide consisting of an optically linear ...
    • Digital coherent receiver for orbital angular momentum demultiplexing 

      Belmonte Molina, Aniceto; Pérez Torres, Juan (2013-01-15)
      Article
      Accés obert
      We put forward a type of receiver for coherent detection of the photon orbital angular momentum (OAM). A coherent array receiver, consisting of multiple subapertures, with each subaperture coupled to a single-mode fiber, ...
    • Digital spiral imaging 

      Torner Sabata, Lluís; Pérez Torres, Juan; Carrasco, Silvia (2005-02)
      Article
      Accés restringit per política de l'editorial
      A major application of optics is imaging all types of structural, physical, chemical and biological features of matter. Techniques based on most known properties of light have been developed over the years to remotely ...
    • Direction-sensitive transverse velocity measurement by phase-modulated structured light beams 

      Rosales Guzmán, Carmelo; Hermosa, Nathaniel; Belmonte Molina, Aniceto; Pérez Torres, Juan (2014-09-15)
      Article
      Accés restringit per política de l'editorial
      The use of structured light beams to detect the velocity of targets moving perpendicularly to the beam's propagation axis opens new avenues for remote sensing of moving objects. However, determining the direction of motion ...
    • Echo Doppler with structured light 

      Belmonte Molina, Aniceto; Pérez Torres, Juan (The Optical Society (OSA), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      When a light beam with a transverse spatially - varying phase is considered for optical remote sensing, in addition to the usual longitudinal Doppler freq uency shift of the returned signal induced by the motion of ...
    • Efficiency-enhanced soliton optical parametric amplifier 

      Carrasco Rodríguez, Sílvia; Pérez Torres, Juan; Torner Sabata, Lluís; Fejer, M M (2002-06)
      Article
      Accés restringit per política de l'editorial
      We show that the pump–to–signal power conversion efficiency of parametric chirped-pulse amplifiers made with periodically poled materials operating with multicolor spatial solitons can be significantly enhanced by employing ...
    • Efficient heralding of polarization-entangled photons from type-0 and type-II spontaneous parametric downconversion in periodically poled KTiOPO 4 

      Steinlechner, Fabian; Gilaberte, Marta; Jofre Cruanyes, Marc; Scheidl, Thomas; Pérez Torres, Juan; Pruneri, Valerio; Ursin, Rupert (2014-09-01)
      Article
      Accés restringit per política de l'editorial
      Ultrabright sources of entangled photon pairs with high heralding efficiency are an important step in the pursuit of high-bit-rate entanglement-base quantum key distribution, as well as an enabling tool for loss-sensitive ...
    • Eigenvalue control and switching by fission of multisoliton bound states in planar waveguides 

      Aleshkevich, V A; Kartashov, Yaroslav V.; Zelenina, A S; Vysloukh, Victor A.; Pérez Torres, Juan; Torner Sabata, Lluís (2004-03)
      Article
      Accés restringit per política de l'editorial
      We report the results of numerical studies of the fission of ¿-soliton bound states at the interface formed by a Kerr nonlinear medium and a linear dielectric in a planar waveguide. A variety of effects are shown to occur, ...