El grup de recerca treballa en dues temàtiques principals:
- L'estudi de fenòmens òptics lineals i no lineals en cristalls fotònics i microcavitats.
- L'estudi de la dinàmica espaciotemporal de sistemes no lineals, sobretot de làsers i sistemes òptics en general.

http://futur.upc.edu/DONLL

The research group works on two main topics: linear and nonlinear optical phenomena in photonic crystals and microcavities, and the spatiotemporal dynamics of nonlinear systems, in particular lasers and optical systems.

http://futur.upc.edu/DONLL

The research group works on two main topics: linear and nonlinear optical phenomena in photonic crystals and microcavities, and the spatiotemporal dynamics of nonlinear systems, in particular lasers and optical systems.

http://futur.upc.edu/DONLL

Enviaments recents

  • Unsupervised feature extraction of anterior chamber OCT images for ordering and classification 

    Amil Marletti, Pablo; González, Laura; Arrondo Murillo, Elena; Salinas Almela, Cecilia; Güell, José Luis; Masoller Alonso, Cristina; Parlitz, Ulrich (Nature, 2019-02-04)
    Article
    Accés obert
    We propose an image processing method for ordering anterior chamber optical coherence tomography (OCT) images in a fully unsupervised manner. The method consists of three steps: Firstly we preprocess the images (filtering ...
  • Laser Ultrasound Inspection Based on Wavelet Transform and Data Clustering for Defect Estimation in Metallic Samples 

    Mohamed Selim, Hossameldin; Delgado Prieto, Miquel; Trull Silvestre, José Francisco; Romeral Martínez, José Luis; Cojocaru, Crina (Multidisciplinary Digital Publishing Institute (MDPI), 2019-01-30)
    Article
    Accés obert
    Laser-generated ultrasound is a modern non-destructive testing technique. It has been investigated over recent years as an alternative to classical ultrasonic methods, mainly in industrial maintenance and quality control ...
  • Phononic crystal device as a self-collimator for laser induced ultrasound 

    Mohamed Selim, Hossameldin; Pico Vila, Rubén; Trull Silvestre, José Francisco; Delgado Prieto, Miquel; Cojocaru, Crina (Sociedad Española de Acústica (SEA), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Laser generated ultrasound has gained interest as an alternative source of ultrasound thanks to its remote operation, high resolution in the excitation area and broad frequency band. However, one of its drawbacks is the ...
  • Material defect reconstruction by non-destructive testing with laser induced ultrasonics 

    Mohamed Selim, Hossameldin; Delgado Prieto, Miquel; Trull Silvestre, José Francisco; Pico Vila, Rubén; Cojocaru, Crina (Institute of Physics (IOP), 2018)
    Text en actes de congrés
    Accés obert
    Aligned with current research efforts and industrial applications on nondestructive testing, in this work, a hybrid system combining remotely induced laser ultrasonics with conventional transducer detection is studied for ...
  • Impact of lag information on network inference 

    Rubido, Nicolás; Masoller Alonso, Cristina (Springer, 2018-11-01)
    Article
    Accés restringit per política de l'editorial
    Extracting useful information from data is a fundamental challenge across disciplines as diverse as climate, neuroscience, genetics, and ecology. In the era of “big data,” data is ubiquitous, but appropriate methods are ...
  • Random delays and the synchronization of chaotic maps 

    Masoller Alonso, Cristina; Marti, Arturo C (American Institute of Physics (AIP), 2005-04)
    Article
    Accés restringit per política de l'editorial
    We investigate the dynamics of an array of chaotic logistic maps coupled with random delay times. We report that for adequate coupling strength the array is able to synchronize, in spite of the random delays. Specifically, ...
  • Directional invisibility by genetic optimization 

    Bor, Emre; Babayigit, Ceren; Kurt, H.; Staliunas, Kestutis; Turduev, M. (2018-11-26)
    Article
    Accés obert
    In this Letter, the design of a directional optical cloaking by a genetic algorithm is proposed and realized experimentally. A three-dimensional finite-difference time-domain method is combined with the genetic optimization ...
  • Asymmetric light transmission effect based on an evolutionary optimized semi-Dirac cone dispersion photonic structure 

    Bor, Emre; Turduev, Mirbek; Yasa, Utku Görkem; Kurt, Hamza; Staliunas, Kestutis (American Physical Society (APS), 2018-12-10)
    Article
    Accés obert
    In this paper, we present the numerical and experimental demonstration of asymmetric light transmission by a compact photonic crystal (PC) structure, which sustains semi-Dirac cone dispersion. The semi-Dirac point is ...
  • Estimation of the motion-induced horizontal-wind-speed standard deviation in an offshore doppler lidar 

    Gutiérrez Antuñano, Miguel Ángel; Tiana Alsina, Jordi; Salcedo, A.; Rocadenbosch Burillo, Francisco (Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-14)
    Article
    Accés obert
    This work presents a new methodology to estimate the motion-induced standard deviation and related turbulence intensity on the retrieved horizontal wind speed by means of the velocity-azimuth-display algorithm applied to ...
  • Near surface geophysical analysis of the Navamuño depression (Sierra de Béjar, Iberian Central System): geometry, sedimentary infill and genetic implications of tectonic and glacial footprint 

    Carrasco González, Rosa M.; Turu Michels, Valentí; Pedraza Gilsanz, Javier de; Herrero Simon, Ramon (2018-08-15)
    Article
    Accés restringit per política de l'editorial
    The geometric and genetic characterization of the Navamuño depression peatland system (Iberian Central System) is presented here using results from a geophysical survey. This depression is a ~30¿ha pseudo-endorheic flat ...
  • Nonlinear oscillatory mixing in the generalized Landau scenario 

    Herrero Simon, Ramon; Farjas Silva, Jordi; Pi Vila, Francesc; Orriols Tubella, Gaspar (American Institute of Physics (AIP), 2018-05-31)
    Article
    Accés obert
    We present a set of phase-space portraits illustrating the extraordinary oscillatory possibilities of the dynamical systems through the so-called generalized Landau scenario. In its simplest form the scenario develops in ...
  • Harmonic generation from metal-oxide and metal-metal boundaries 

    Escalora, M.; Vincenti, M. A.; de Ceglia, Domenico; Akozbek, Neset; Bloemer, M. J.; De Angelis, C.; Haus, J.W.; Vilaseca Alavedra, Ramon; Trull Silvestre, José Francisco; Cojocaru, Crina (American Physical Society (APS), 2018-08-20)
    Article
    Accés obert
    We explore the outcomes of detailed microscopic models by calculating second- and third-harmonic generation from thin-film surfaces with discontinuous free-electron densities. These circumstances can occur in structures ...

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