GREO - Grup de Recerca en Enginyeria Òptica

 

El Grup de Recerca en Enginyeria Òptica pertany al Centre de Desenvolupament de Sensors, Instrumentació i Sistemes (CD6) de la UPC. L'activitat del Grup està dedicada tant a la recerca aplicada com de transferència de noves aplicacions basades en el disseny de dispositius òptics i fotònics. La recerca del Grup dona lloc regularment a contribucions científiques en forma de tesis doctorals, articles publicats en revistes indexades, contribucions a congressos nacionals i internacionals i patents, algunes d'elles en explotació. El fet que l'enginyeria òptica i la fotònica són tecnologies transversals que poden donar un alt valor afegit a les aplicacions industrials han fet que les activitats de transferència de coneixement experimentin un fort creixement. El Grup ha estat molt actiu en la creació d'empreses derivades (spin-offs) basades en tecnologia (set en total). Aquestes empreses contribueixen al creixement i la internacionalització de les activitats del Grup.

The aim is to carry out R&D activities and provide innovative solutions in the field of optical engineering. The main research areas are the design of optical systems and sensors, the development of instrumentation, optical metrology, laser applications, colour technology, radiometry and photometry, and biomedical instrumentation.

The aim is to carry out R&D activities and provide innovative solutions in the field of optical engineering. The main research areas are the design of optical systems and sensors, the development of instrumentation, optical metrology, laser applications, colour technology, radiometry and photometry, and biomedical instrumentation.

Recent Submissions

  • Transmittance measurement of the in vivo human eye with a double-pass system 

    Sánchez, Roberto; De Paul, Aníbal; Burgos Fernández, Francisco Javier; Vilaseca Ricart, Meritxell; Pujol Ramo, Jaume; Issolio, Luis A. (2021)
    Article
    Open Access
    Purpose: To develop a methodology based on a double-pass system to obtain information about the transmittance of ocular media. Methods: The procedure consists of recording double-pass images at different powers of a laser ...

  • 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
    Restricted access - publisher's policy
    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
    Restricted access - publisher's policy
    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
    Restricted access - publisher's policy
    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
    Restricted access - publisher's policy
    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 ...

  • Bringing old telescopes to a new robotic life 

    Suc, Vincent; Ropert, Samuel; Jordan, Andres; Royo Royo, Santiago (2017)
    Article
    Open Access
    We present the development from its origin to the implementation of new hardware and software for telescope control. This system has been designed to be adaptable to old decommissioned telescopes. We will show how we applied ...

  • Current modulation induced stability in laser diode under high optical feedback strength 

    Jha, Ajit; Kumar Shah, Manoj; Jha, Sachin; Reddy Cenkeramaddi, Linga; Royo Royo, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
    Article
    Open Access
    The back-reflection of emitted laser beam (optical feedback, also know as selfmixing) from various external interfaces are sufficient to cause instability, and prohibiting its use in various fields such as communication, ...

  • Spectral image at the service of medical diagnosis 

    Vilaseca Ricart, Meritxell (2020)
    Article
    Restricted access - publisher's policy

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