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

Recent Submissions

  • Are the spikes emitted by a semiconductor laser with feedback similar to neuronal spikes? 

    Quintero Quiroz, Carlos Alberto; Amaral Sorrentino, Taciano; Aragoneses, Andrés; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina (2017)
    Conference report
    Restricted access - publisher's policy
    We study experimentally a semiconductor laser operating in a feedback-induced regime known as low frequency fluctuations (LFFs), in which the laser emits a spiking output that resembles the spikes of biological neurons. ...
  • Collective excitability in a mesoscopic neuronal model of epileptic activity 

    Jedynak, Maciej; Pons Rivero, Antonio Javier; García Ojalvo, Jordi (2018-01-12)
    Article
    Open Access
    At the mesoscopic scale, the brain can be understood as a collection of interacting neuronal oscillators, but the extent to which its sustained activity is due to coupling among brain areas is still unclear. Herewe address ...
  • A wind-lidar buoy for offshore wind measurements: first commissioning test-phase results 

    Gutiérrez Antuñano, Miguel Ángel; Tiana Alsina, Jordi; Rocadenbosch Burillo, Francisco; Sospedra, Joaquim; Aghabi, Rajai; González Marco, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Restricted access - publisher's policy
    This paper presents the development of a new commercial floating lidar system aimed to measure the wind resource and other environmental variables at candidate wind farm locations. This work describes this new lidar system ...
  • Generation of extreme pulses on demand in semiconductor lasers with optical injection 

    Tian, Jin; Chen, Siyu; Masoller Alonso, Cristina (2017-12-11)
    Article
    Open Access
    The generation of extreme intensity pulses in an optically injected semiconductor laser is studied numerically by using a well-known rate equation model. We show that step-up perturbations of the laser pump current can ...
  • Monolithic CIGS-Perovskite tandem cell for optimal light harvesting without current matching 

    Mantilla Perez, Paola; Correa Baena, Juan Pablo; Liu, Quan; Colodrero, Silvia; Toudert, Johann; Saliba, Michale; Hagfeldt, Anders; Martorell Pena, Jordi (2017-03-22)
    Article
    Restricted access - publisher's policy
    We present a novel monolithic architecture for optimal light harvesting in multijunction thin film solar cells. In the configuration we consider, formed by a perovskite (PVK) cell overlying a CIGS cell, the current extracted ...
  • Nanoparticle assisted mechanical delamination for freestanding high performance organic devices 

    Colodrero, Silvia; Romero Gómez, Pablo; Mantilla Perez, Paola; Martorell Pena, Jordi (2017-01-12)
    Article
    Open Access
    Organic electronics has the potential to be incorporated in any kind of surface morphology for wearable or fully portable applications. Unfortunately when organic devices, such as solar cells, are fabricated on flexible ...
  • Attosecond sublevel beating and nonlinear dressing on the 3d-to-5p and 3p-to-5s core-transitions at 91.3 eV and 210.4 eV in krypton 

    Seres, Enikoe; Seres, Jozsef; Namba, Shinichi; Afa, Iduabo John; Serrat Jurado, Carles (2017-12-11)
    Article
    Open Access
    Applying extreme ultraviolet (XUV) transient absorption spectroscopy, the dynamics of the two laser dressed transitions 3d5/2-to-5p3/2 and 3p3/2-to-5s1/2 at photon energies of 91.3 eV and 210.4 eV were examined with ...
  • Scattering properties of a PT dipole 

    Staliunas, Kestutis; Markos, P.; Kuzmiak, V. (2017-10-23)
    Article
    Open Access
    Electromagnetic response of a PT dipole is studied both analytically and numerically. In the analytical approach, the dipole is represented by two point scatterers. Within the first Born approximation, the asymmetry of the ...
  • Experimental characterization of the transition to coherence collapse in a semiconductor laser with optical feedback 

    Panozzo, M.; Quintero Quiroz, Carlos Alberto; Tiana Alsina, Jordi; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina (Institute of Physics (IOP), 2017-11-01)
    Article
    Open Access
    Semiconductor lasers with time-delayed optical feedback display a wide range of dynamical regimes, which have found various practical applications. They also provide excellent testbeds for data analysis tools for characterizing ...
  • Multi-longitudinal-mode micro-laser model 

    Staliunas, Kestutis (2017-10-19)
    Article
    Restricted access - publisher's policy
    We derive a convenient model for broad aperture micro-lasers, such as microchip lasers, broad area semiconductor lasers, or VCSELs, taking into account several longitudinal mode families. We provide linear stability analysis, ...
  • Control of rubidium low-lying Rydberg states with trichromatic femtosecond p pulses for ultrafast quantum information processing 

    Afa, Iduabo John; Font Garcia, Josep Lluís; Serrat Jurado, Carles (2017-11-20)
    Article
    Open Access
    We propose an ultrafast femtosecond time scale trichromatic π-pulse illumination scheme for coherent excitation and manipulation of low-lying Rydberg states in rubidium. Selective population of nP3/2 levels with principal ...
  • Incoherent Light Sources for Speckle Reduction in Double Pass Ocular Imaging 

    Halpaap Halpaap, Herbert Donatus; Vilaseca Ricart, Meritxell; Masoller Alonso, Cristina (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2017)
    Article
    Open Access

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