Ara es mostren els items 50-69 de 69

    • Numerical simulation of long path spherical wave propagation in three-dimensional random media 

      Fernández Rubio, Juan Antonio; Belmonte Molina, Aniceto; Comerón Tejero, Adolfo (1999-09)
      Article
      Accés restringit per política de l'editorial
      A new method to overcome some limitations in the simulation of the propagation of waves originating from a point source through a very long path in a turbulent medium is presented. Existing propagation simulation algorithms ...
    • Numerical simulation of long-path spherical wave propagation in three-dimensional random media 

      Rubio Sancho d'Ávila, Juan Antonio; Belmonte Molina, Aniceto; Comerón Tejero, Adolfo (SPIE-INT SOCIETY OPTICAL ENGINEERING, 1999-09-30)
      Article
      Accés obert
      A new method to overcome some limitations in the simulation of the propagation of waves originating from a point source through a very long path in a turbulent medium is presented. Existing propagation simulation algorithms ...
    • Optical Doppler shift with structured light 

      Belmonte Molina, Aniceto; Pérez Torres, Juan (2011-11-15)
      Article
      Accés obert
      When a light beam with a transverse spatially varying phase is considered for optical remote sensing, in addition to the usual longitudinal Doppler frequency shift of the returned signal induced by the motion of the scatter ...
    • Optical metrology techniques harness structured light beams 

      Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (2017-03-08)
      Article
      Accés restringit per política de l'editorial
      This approach holds promise for advancing laser remote sensing, fluid dynamics and profilometry.
    • Optical metrology with structured light 

      Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work we will review some of the novel applications, recently proposed, where the use of structured light has played a crucial role. First, in the field of laser remote sensing, we discuss about a technique that ...
    • Optimal modes for spatially multiplexed free-space communication in atmospheric turbulence 

      Belmonte Molina, Aniceto; Kahn, Joseph M. (2021-12-20)
      Article
      Accés obert
      In near-field free-space optical (FSO) communication, spatial-mode multiplexing (SMM) increases transmission capacity by transmitting independent information streams in orthogonal modes. Propagation through atmospheric ...
    • Optimal modes for spatially multiplexed free-space communications 

      Belmonte Molina, Aniceto; Kahn, Joseph M. (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      There exist optimal modes for free-space spatial-mode multiplexing with minimum degradation, under a realistic assumption that a transmitter knows the statistics of propagated fields. Using these modes as transmit and ...
    • Performance analysis of atmospheric field conjugation adaptive arrays 

      Belmonte Molina, Aniceto; Kahn, Joseph M. (Hamid Hemmati, 2011)
      Text en actes de congrés
      Accés obert
      System configurations based on single monolithic-apertures that are immune to atmospheric fluctuations are being developed. Main goal is the improvement of the performance achievable in coherent, free-space optical ...
    • Performance analysis of satellite-to-ground downlink optical communications with spatial diversity over Gamma–Gamma atmospheric turbulence 

      Li, Kanging; Ma, Jing; Belmonte Molina, Aniceto; Tan, Liying; Yu, Siyuan (2015-12-08)
      Article
      Accés restringit per política de l'editorial
      The performances of satellite-to-ground downlink optical communications over Gamma–Gamma distributed turbulence are studied for a multiple-aperture receiver system. Equal gain-combining (EGC) and selection-combining (SC) ...
    • Performance of coherent lidar receivers using atmospheric compensation techniques 

      Belmonte Molina, Aniceto (Météo-France, 2009)
      Text en actes de congrés
      Accés obert
    • Performance of synchronous or nonsynchronous receivers using atmospheric compensation techniques 

      Belmonte Molina, Aniceto; Joseph, M Kahn (The Optical Society of America, Washington, DC, 2008)
      Text en actes de congrés
      Accés obert
    • Proof of concept for adaptive sequential optimization of free-space communication receivers 

      Carrizo, Carlos E.; Mata Calvo, Ramón; Belmonte Molina, Aniceto (Optical Society of American (OSA), 2019-07-05)
      Article
      Accés obert
      In a downlink scenario, the performance of laser satellite communications is limited due to atmospheric turbu- lence, which causes fluctuations in the intensity and the phase of the received signal, leading to an increase ...
    • Roadmap on structured light 

      Rubinsztein-Dunlop, Halina; Forbes, Andrew; Berry, M. V.; Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (Institute of Physics (IOP), 2017)
      Article
      Accés obert
      Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge. This roadmap ...
    • Satellite downlink coherent laser communications 

      Belmonte Molina, Aniceto; Kahn, J. M. (Springer, 2016-01-01)
      Capítol de llibre
      Accés restringit per política de l'editorial
    • Self-homodyne detection of the light orbital angular momentum 

      Belmonte Molina, Aniceto; Pérez Torres, Juan (2012-07-15)
      Article
      Accés restringit per política de l'editorial
      A simple optical system for the self-homodyne detection of the orbital angular momentum (OAM) carried by optical beams is introduced. We propose two different schemes based on the use of optical hybrids, which could detect ...
    • Sequential optimization of adaptive arrays in coherent laser communications 

      Belmonte Molina, Aniceto; Kahn, J. M. (2013-05-01)
      Article
      Accés restringit per política de l'editorial
      In optical wireless communications, a channelmatched adaptive coherent receiver may be implemented using an array of receive apertures. After atmospheric channel fading estimation, several replicas of a message received ...
    • Speckle-based sequential optimization of adaptive receivers in downlink laser communications 

      Carrizo, Carlos E.; Mata Calvo, Ramón; Belmonte Molina, Aniceto (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Free-space optical communications (FSOC) are rapidly becoming a key technology for terrestrial, aerial, and space communication, mainly because of its very high throughput capacity. To achieve multi-gigabit laser downstream, ...
    • Statistical model for fading return signals in coherent lidars 

      Belmonte Molina, Aniceto (2010-12-10)
      Article
      Accés obert
    • Transverse Doppler effect using engineered optical beams 

      Rosales Guzmán, Carmelo; Hermosa, Nathaniel; Belmonte Molina, Aniceto; Pérez Torres, Juan (2013)
      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 frequency shift of the returned signal induced by the motion of the ...
    • Understanding the performance of atmospheric free-space laser communications systems using coherent detection 

      Belmonte Molina, Aniceto; Kahn, Joseph M. (2010)
      Text en actes de congrés
      Accés obert