• openAccess   Diffractive optics for quasi-direct space-to-time pulse shaping 

      Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Lancis, Jesús; Gisbert, Rafael; Andrés, Pedro Optical Society of America (2008)
      The strong chromatic behavior associated with a conventional diffractive lens is fully exploited to propose a novel optical device for pulse shaping in the femtosecond regime. This device consists of two optical elements: ...
    • closedAccess   All-fiber incoherent frequency-to-time mapping method for microwave signal generation with baseband transmission and multicasting support 

      Torres Company, Víctor; Monroy, Idelfoaso Tafur; Lancis, Jesús; Andrés, Pedro Elsevier (2008)
      We present a proof-of-principle experiment for achieving simultaneous distribution of baseband radio-frequency data and up-conversion with broadcasting support over a passive optical network. The technique is based on an ...
    • closedAccess   Flat-top ultra-wideband photonic filters based on mutual coherence function synthesis 

      Torres Company, Víctor; Lancis, Jesús; Andrés, Pedro Elsevier (2008)
      A novel all-incoherent optical circuit that allows for band-pass microwave-photonic filter design is presented and verified through numerical simulation. In contrast to conventional spectrum-sliced optical architectures ...
    • closedAccess   Experimental generation of high-contrast Talbot images with an ultrashort laser pulse 

      Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Fernández Alonso, Mercedes; Andrés, Pedro; Climent, Vicent; Lancis, Jesús Elsevier (2008)
      A femtosecond Ti:sapphire laser oscillator emitting pulses with 800 nm central wavelength, 10.9 fs pulse width, and 75 MHz repetition rate, combined with a dispersion-compensated diffractive system, was used to implement ...
    • openAccess   Electromagnetic arbitrary waveform generation with broadband incoherent light sources 

      Torres Company, Víctor; Lancis, Jesús; Andrés, Pedro; Chen, Lawrence R. Optical Society of America (2008-12)
      Optical engineering: new waveform generation provides the experimentalist with interesting new tools
    • openAccess   Single-shot digital holography
by use of the fractional Talbot effect 

      Martínez-León, Lluís; Araiza Esquivel, María A.; Javidi, Bahram; Andrés, Pedro; Climent, Vicent; Lancis, Jesús; Tajahuerce, Enrique Optical Society of America (2009)
      We present a method for recording in-line single-shot digital holograms based on the fractional Talbot effect. In our system, an image sensor records the interference between the light field scattered by the object and a ...
    • openAccess   Centroid propagation through optical systems with ABCD kernels and nonuniform or finite apertures 

      Lancis, Jesús; Martinez Cuenca, Raul; Ares, Jorge; Bará, Salvador Optical Society of America (2010-07)
      If the propagation of a light field can be satisfactorily described by a diffraction integral with an ABCD kernel, the propagation of its irradiance centroid is completely determined by the corresponding ABCD ray-transfer ...
    • closedAccess   Normalized global alignment for protein sequences 

      Peris Ripollés, Guillermo; Marzal Varó, Andrés Elsevier (2011)
      Global alignment is used to compare proteins in different fields, for example in phylogenetic research. In order to reduce the length and composition dependence of global alignment scores, Z-score is computed with a ...
    • openAccess   Self-similar focusing with generalized devil’s lenses 

      Casanova, Cristina; Burlan, Walter D.; Remón, Laura; Calatayud, Arnau; Monsoriu, Juan A.; Mendoza-Yero, Omel Optical Society of America (2011)
      We introduce the generalized devil’s lenses (GDLs) as a new family of diffractive kinoform lenses whose structure is based on the generalized Cantor set. The focusing properties of different members of this family are ...
    • openAccess   Managing mechanisms for collaborative new-product development in the ceramic tile design chain 

      Agost, Maria-Jesus; Company, Pedro; Romero Subirón, Fernando Graz University of Technology, Institut für Informationssysteme und Computer Medien (2011)
      This paper focuses on improving the management of New-Product Development (NPD) processes within the particular context of a cluster of enterprises that cooperate through a network of intra- and inter-firm relations. ...
    • openAccess   Closed-loop adaptive optics with a single element for wavefront sensing and correction 

      Martinez Cuenca, Raul; Durán, Vicente; Arines, Justo; Ares, Jorge; Jaroszewicz, Z.; Bará, Salvador; Martínez-León, Lluís; Lancis, Jesús Optical Society of America (2011)
      We propose a closed-loop adaptive optical arrangement based on a single spatial light modulator that simultaneously works as a correction unit and as the key element of a wavefront sensor. This is possible by using a liquid ...
    • openAccess   Diffractive optics for spectral control of the supercontinuum generated in sapphire with femtosecond pulses 

      Romero, Carolina; Borrego Varillas, Rocío; Camino, Acner; Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Hernández Toro, Juan; Vázquez de Aldana, Javier R. Optical Society of America (2011)
      We propose the use of kinoform diffractive lenses to focus near infrared femtosecond pulses in sapphire crystals for supercontinuum generation. It is shown that a strongly peaked structure appears in the blue region of the ...
    • openAccess   Modelos de Papel 3D Personalizados: papermodels.uji.es 

      Ribelles, Jose; López, Angeles Asociación de Técnicos de Informática (ATI) (2011)
      Una característica que se ha incorporado al mundo del comercio hace ya algunos años es la posibilidad de personalizar un producto a gusto del consumidor. También en el sector del entretenimiento se ha aplicado con éxito, ...
    • closedAccess   The space-bandwidth product in the join ttransform correlator optical encryption setup 

      Cuadrado Laborde, Christian; Lancis, Jesús Elsevier (2011)
      In this work we study the joint transform correlator (JTC) optical encryption setup through the Wigner function. We found analytical expressions for the spatial and spatial frequency extent of the encrypted signal. Since ...
    • closedAccess   Self-referenced phase reconstruction proposal of Ghz bandwidth non-periodical optical pulses by in-fiber semi-differintegration 

      Cuadrado Laborde, Christian; Andrés, Miguel V.; Lancis, Jesús Elsevier (2011)
      We propose two new techniques able to retrieve the phase profile of a given temporal optical pulse based on the use of in-fiber semi-differintegral operators, where by semi-differintegration we mean either a 0.5th-order ...
    • closedAccess   Managing user-generated information in geospatial cyberinfrastructures 

      Díaz Sánchez, Laura; Granell, Carlos; gould, michael; Huerta, Joaquin Elsevier (2011)
      Information systems built using standards-based distributed services have become the default computing paradigm adopted by the geospatial community for building information infrastructures also known as Spatial Data ...
    • closedAccess   Space-Time Analogies in Optics 

      Torres Company, Víctor; Lancis, Jesús; Andrés, Pedro Elsevier (2011)
      The so-called space-timeanalogy constitutes a source of inspiration to understand, engineer, and implement new systems for ultrafast optical signal processing based on concepts borrowed from the well-established field of ...
    • closedAccess   Canopy spectral invariants, Part2: Application to classification of forest types from hyperspectral data 

      Schull, Mitchell A.; Knyazikhin, Yuri; Xu, Lan; Samanta, Arun; Latorre Carmona, Pedro; Lepine, L.; Jenkins, J. P.; Ganguly, S.; Myneni, Ranga B. Elsevier (2011)
      Many studies have been conducted to demonstrate the ability of hyperspectral data to discriminate plant dominant species. Most of them have employed the use of empirically based techniques, which are site specific, requires ...
    • openAccess   A note on the p-parabolicity of submanifolds 

      Hurtado, Ana; Palmer Andreu, Vicente Springer Science+Business Media B.V. (2011)
      We give a geometric criterion which shows p-parabolicity of a class of submanifolds in a Riemannian manifold, with controlled second fundamental form, for p ≥ 2.
    • closedAccess   Geostatistical methods to identify and map spatial variations of soil salinity 

      Juan, Pablo; Mateu, Jorge; Jordán Vidal, Manuel Miguel; Mataix-Solera, Jorge; Meléndez-Pastor, I.; Navarro Pedreño, José Elsevier (2011-01)
      The problem of estimating and predicting spatial distribution of a spatial stochastic process, observed at irregular locations in space, is considered in this paper. Environmental variables usually show spatial dependencies ...