Listar INIT_Articles por fecha de publicación
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Diffractive optics for quasi-direct space-to-time pulse shaping
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: ... -
All-fiber incoherent frequency-to-time mapping method for microwave signal generation with baseband transmission and multicasting support
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 ... -
Flat-top ultra-wideband photonic filters based on mutual coherence function synthesis
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 ... -
Experimental generation of high-contrast Talbot images with an ultrashort laser pulse
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 ... -
Electromagnetic arbitrary waveform generation with broadband incoherent light sources
Optical Society of America (2008-12)Optical engineering: new waveform generation provides the experimentalist with interesting new tools -
Single-shot digital holography by use of the fractional Talbot effect
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 ... -
Centroid propagation through optical systems with ABCD kernels and nonuniform or finite apertures
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 ... -
Managing mechanisms for collaborative new-product development in the ceramic tile design chain
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. ... -
Canopy spectral invariants, Part2: Application to classification of forest types from hyperspectral data
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 ... -
A note on the p-parabolicity of submanifolds
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. -
The space-bandwidth product in the join ttransform correlator optical encryption setup
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 ... -
Diffractive optics for spectral control of the supercontinuum generated in sapphire with femtosecond pulses
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 ... -
Closed-loop adaptive optics with a single element for wavefront sensing and correction
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 ... -
Space-Time Analogies in Optics
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 ... -
Self-referenced phase reconstruction proposal of Ghz bandwidth non-periodical optical pulses by in-fiber semi-differintegration
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 ... -
Modelos de Papel 3D Personalizados: papermodels.uji.es
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, ... -
Normalized global alignment for protein sequences
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 ... -
Self-similar focusing with generalized devil’s lenses
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 ... -
Managing user-generated information in geospatial cyberinfrastructures
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 ... -
Geostatistical methods to identify and map spatial variations of soil salinity
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 ...