Ponències/Comunicacions de congressos

Recent Submissions

  • Adaptive optical head for industrial vibrometry applications 

    Atashkhooei, Reza; Zabit, U; Royo Royo, Santiago; Bosch, Thierry; Bony, F. (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2011)
    Conference report
    Restricted access - publisher's policy
    A self-mixing laser interferometer has been combined with a compact and robust optical system including an adaptive optical element in the form of a voltage controllable liquid lens. The use of the liquid lens enables the ...

  • Submicrometric profilometry of nonrotationally symmetrical surfaces using the Ronchi test 

    Royo Royo, Santiago; Arasa, Josep; Caum Aregay, Jesús (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2000)
    Conference report
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    The Ronchi test is a widely used tool in the optical shop, because of its capability of measuring wide-field profiles of optical quality surfaces through its important ray slope dynamic range. Although many applications ...

  • Adaptive feedback control in self-mixing interferometry using active optical elements 

    Atashkhooei, Reza; Zabit, U; Royo Royo, Santiago; Azcona Guerrero, Francisco Javier; Sergievskaya, Irina (Universidad de Murcia, 2011)
    Conference report
    Open Access
    A voltage-controlled liquid lens has been used as an adaptive optical element integrated in a conventional self-mixing interferometry setup. The lens is used to control the optical feedback level and the focus position of ...

  • Fast correction in adaptive optical system using block control 

    Sergievskaya, Irina; Royo Royo, Santiago; Riu, Jordi; Ares Rodríguez, Miguel (Universidad de Murcia, 2011)
    Conference report
    Open Access
    We propose to take advantage of the sparse structure of the control matrix in adaptive optical systems in order to allow the acceleration of the control loop in real time wavefront correction. The idea is using the local ...

  • Proyección de franjas fotogramétrica para la medida in vivo de topografías de piel humana 

    Atashkhooei, Reza; Royo Royo, Santiago; Suc, Vincent; Sergievskaya, Irina; Ares Rodríguez, Miguel; Segura Pla, Jordi; Galcerán, José; Panyella, David; Coll, Joaquim (2009)
    Conference report
    Restricted access - publisher's policy
    La perfilometría topográfica de la piel en diferentes escalas permite el análisis cuantitativo de los procedimientos médicos y cosméticos. En particular, el uso de parámetros perfilométricos de superficie en las mediciones ...

  • Desarrollo de una cámara lidar para aplicaciones de imagen 3D de tiempo real 

    Riu, Jordi; Royo Royo, Santiago (Ediciones Universidad de Salamanca, 2015)
    Conference report
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    Este trabajo presenta las etapas del desarrollo de un nuevo sistema de cámara lidar para la generación de imagen tridimensional. Basado en la técnica de tiempo de vuelo, se mediante la cámara se generan nubes de puntos que ...

  • B-spline basis for adaptive piezoelectric mirror shape reconstruction 

    Sergievskaya, Irina; Royo Royo, Santiago; Ares Rodríguez, Miguel (2009)
    Conference report
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    In this paper we compare RMS fitting error of an experimental wavefront for its Zernike and B-spline approximations. Wavefront shapes are achieved using a commercial piezoelectric deformable mirror. Number of Zernike modes ...

  • Ultracompact vibrometry measurement with nanometric accuracy using optical feedback 

    Jha, Ajit; Azcona Guerrero, Francisco Javier; Royo Royo, Santiago (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2015)
    Conference report
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    The nonlinear dynamics of a semiconductor laser with optical feedback (OF) combined with direct current modulation of the laser is demonstrated to suffice for the measurement of subwavelength changes in the position of a ...

  • Multispectral imaging of healthy and diseased red blood cells using confocal microscopy 

    Rey Barroso, Laura; Roldán, Mónica; Burgos Fernández, Francisco Javier; Isola, Ignacio; Ruiz Llobet, Anna; Gassiot Riu, Susanna; Vilaseca Ricart, Meritxell (International Colour Association (AIC), 2020)
    Conference report
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    Red blood cell disorders represent the most common single-gene defects and pose a major public health problem, particularly in tropical countries, occurring with high frequency. Their diagnose can sometimes be difficult ...

  • Design and characterization of non-planar 3D-printed passive UHF-RFID tag 

    Vidal Martínez, Neus; Salas Barenys, Arnau; Garcia Miquel, Aleix; Romeu Robert, Jordi; González López, Giselle; Jofre Roca, Lluís; López Villegas, José María (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    This paper presents the design and preliminary characterization of a novel 3D passive UHF-RFID tag. The prototype is fabricated using additive manufacturing techniques: 3D printing and copper electroplating. The design, ...

  • Frecuencia de parpadeo y parpadeos incompletos en seis condiciones controladas de lectura en formato electrónico y en papel 

    Argilés Sans, Marc; Cardona Torradeflot, Genís; Pérez Cabré, Elisabet; Rodríguez Montiel, Margarita (2016)
    Conference lecture
    Restricted access - publisher's policy

  • Graphical ray tracing through imaging optical systems for optometrists 

    Millán Garcia-Varela, M. Sagrario; Escofet Soteras, Jaume; Pérez Cabré, Elisabet; Cobo Ruiz, Fernando (ITMO University (University of Information Technologies, Mechanics and Optics), 2008)
    Conference lecture
    Restricted access - publisher's policy
    In the approach of geometrical optics, ray tracing is an illustrative tool to determine the light path through an optical system. We show different educational resources used to help students to develop their skills ...

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