Now showing items 1-20 of 28

    • Anemómetro laser doppler para la medida de dos componentes de velocidad para aplicaciones hidrodinamicas (2d-lda) 

      García Vizcaíno, David; Dios Otín, Víctor Federico; Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Muñoz Porcar, Constantino (Universidad Europea de Madrid, 2001)
      Conference report
      Open Access
      A Laser Doppler Anemometer system designed to measure two components of the velocity vector in fluids is presented. The scheme followed is the differential technique with backward scattering ...
    • Bandgap widening in macroporous silicon photonic crystals by multiperiodic structures 

      Segura García, Daniel; Cardador Maza, David; Vega d'Aurelio, Davide; Santos Blanco, M. Concepción; Dios Otín, Víctor Federico; Rodríguez Martínez, Ángel (Institute of Physics (IOP), 2018-05-14)
      Article
      Open Access
      Large bandgaps with low transmission in 3D macroporous silicon photonic crystals have been proved as an interesting technology for the development of optical filters and spectroscopic MIR gas sensors. The aim of this study ...
    • Campos electromagnéticos 

      Dios Otín, Víctor Federico (Edicions UPC, 1998)
      Book
      Restricted access to the UPC academic community
      La presente obra pretende proporcionar al estudiante una base sólida de conocimientos y conceptos de teoría electromagnética, que le permita acceder posteriormente a la comprensión de otros temas más avanzados, como los ...
    • Campos electromagnéticos : problemas resueltos 

      Dios Otín, Víctor Federico; Artigas García, David; Canal Bienzobas, Fernando; Recolons Martos, Jaume (Edicions UPC, 2001)
      Book
      Restricted access to the UPC academic community
      Este libro está orientado a los estudiantes de Ingeniería que se introducen con un cierto rigor en el estudio de las ondas electromagnéticas. Contiene una cuidada selección de problemas, dividida en seis capítulos, y ...
    • Cálculo teórico de la relación señal a ruido en función del tamaño de la apertura receptora de un anemómetro láser doppler (LDA) 

      García Vizcaíno, David; Recolons Martos, Jaume; Dios Otín, Víctor Federico; Comerón Tejero, Adolfo (2004-09)
      Conference report
      Open Access
      From the expressions by Adrian and Earley (Proceeding of Minessota Symposium on Laser Anemometry, University of Minessota, Dept. of Conference, Minneapolis, 1976), we have calculated the signal-to-noise ratio of a Laser ...
    • Development of gas sensors based in photonic cristal slabs 

      Yoosefi, Oraman; Yahyapour, MJ; Segura García, Daniel; Vega Bru, Didac; Dios Otín, Víctor Federico; Rodríguez Martínez, Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This work describes an innovative application of structures of photonic crystal slabs for gas sensors. Structures consisting in double ring have been studied by simulation. Their working mechanism is based in the effect ...
    • Dynamic behaviour in a nonlinear directional coupler with feedback 

      Artigas García, David; Dios Otín, Víctor Federico; Canal Bienzobas, Fernando (TAYLOR & FRANCIS LTD, 1997-06-30)
      Article
      Open Access
      A new kind of resonator based on a nonlinear directional coupler with feedback is presented. The steady states are found and the map of the system is iterated, showing the existence of bistability, period doubling and ...
    • ¿Es posible legislar sobre cuestiones éticas? 

      Dios Otín, Víctor Federico (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2005)
      Article
      Open Access
      La legitimidad del Estado para legislar sobre conductas consideradas no-éticas (sea desde el punto de vista de la razonabilidad práctica o, al menos, desde la óptica de la mayoría de los ciudadanos) cuando se circunscriben ...
    • Examen Final 

      Dios Otín, Víctor Federico; Sicard, Michaël (Universitat Politècnica de Catalunya, 2018-01-17)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Sicard, Michaël; Dios Otín, Víctor Federico; Cómeron, Adolfo (Universitat Politècnica de Catalunya, 2019-01-14)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Canal Bienzobas, Fernando; Dios Otín, Víctor Federico; Mercader Calvo, María Isabel; Net Marcé, Marta (Universitat Politècnica de Catalunya, 2013-12-04)
      Exam
      Restricted access to the UPC academic community
    • Exponentiated weibull distribution family under aperture averaging for gaussian beam waves 

      Barrios Porras, Ricardo Alfonso; Dios Otín, Víctor Federico (2012-06-04)
      Article
      Open Access
      Nowadays, the search for a distribution capable of modeling the probability density function (PDF) of irradiance data under all conditions of atmospheric turbulence in the presence of aperture averaging still continues. Here, ...
    • Exponentiated Weibull model for the irradiance probability density function of a laser beam propagating through atmospheric turbulence 

      Barrios Porras, Ricardo Alfonso; Dios Otín, Víctor Federico (2013-02)
      Article
      Restricted access - publisher's policy
      Many distributions have been proposed to model the probability density function of irradiance fluctuations. The most widespread models nowadays are the Lognormal (LN) and Gamma–Gamma (GG) distributions. Albeit these models ...
    • FMCW lidar for multiple target sounding 

      Batet Torrell, Óscar; Dios Otín, Víctor Federico; Comerón Tejero, Adolfo (SPIE Press. The International Society for Optical Engineering, 2011)
      Conference report
      Restricted access - publisher's policy
      Continuous-Wave lidars are constantly evolving in order to achieve the best performances with low power and low cost. Frequency-modulated continuous-wave (FMCW) lidar is a well-known type of lidar used for solid-target ...
    • Intensity-modulated linear-frequency-modulated continuous-wave lidar for distributed media: fundamentals of technique 

      Batet Torrell, Óscar; Dios Otín, Víctor Federico; Comerón Tejero, Adolfo; Agishev, Ravil R. (2010-06-10)
      Article
      Restricted access - publisher's policy
      We analyze the intensity-modulation frequency-modulated continuous-wave (FMCW) technique for lidar remote sensing in the context of its application to distributed media. The goal of the technique is the reproduction of ...
    • Medida del perfil de velocidad de un líquido en un tubo de sección circular mediante un radar láser 

      García Vizcaíno, David; Recolons Martos, Jaume; Dios Otín, Víctor Federico; Comerón Tejero, Adolfo (2007-09)
      Conference report
      Open Access
      In this paper we present the measures of the profile or velocity gradient of a liquid (water) across a circular section pipe in laminar state, by means of a two-dimension laser radar system (2D-LDA) designed by the ...
    • Nonlinear resonant conversion of modes in optical waveguides 

      Dios Otín, Víctor Federico; Shvartsburg, Alexander B.; Artigas García, David; Canal Bienzobas, Fernando (ELSEVIER SCIENCE BV, 1995-07-31)
      Article
      Open Access
      A new class of resonant exchange of power among three co-propagating modes in dielectric optical waveguides exhibiting Kerr-like nonlinearity is reported. Unlike the coupling of modes travelling in different, spatially ...
    • On the choice of the number of samples in laser Doppler anemometry signal processing 

      Dios Otín, Víctor Federico; Comerón Tejero, Adolfo; García Vizcaíno, David (2001-05)
      Article
      Open Access
      The minimum number of samples that must be taken from a sinusoidal signal affected by white Gaussian noise, in order to find its frequency with a predetermined maximum error, is derived. This analysis is of interest in ...
    • Phase space description of nonlinear directional couplers 

      Artigas García, David; Dios Otín, Víctor Federico (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1994-07-01)
      Article
      Open Access
      A comprehensive analysis of the symmetric nonlinear directional coupler as a function of the excitation conditions is reported. The analysis is based on a coupled-mode technique in normalized (dimensionless) parameters, ...
    • Phase space description of nonlinear directional couplers 

      Artigas García, David; Dios Otín, Víctor Federico (1994-07)
      Article
      Open Access
      A comprehensive analysis of the symmetric nonlinear directional coupler as a function of the excitation conditions is reported. The analysis is based on a coupled-mode technique in normalized (dimensionless) parameters, ...