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

Recent Submissions

  • Mutual regulation causes co-entrainment between a synthetic oscillator and the bacterial cell cycle 

    Dies, Marta; Galera Laporta, Leticia; García Ojalvo, Jordi (2016-01-01)
    Article
    Restricted access - publisher's policy
    The correct functioning of cells requires the orchestration of multiple cellular processes, many of which are inherently dynamical. The conditions under which these dynamical processes entrain each other remain unclear. ...
  • Numerical and experimental demonstration of a wavelength demultiplexer design by point-defect cavity coupled to a tapered photonic crystal waveguide 

    Hayran, Zeki; Turduev, Mirbek; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis; Kurt, Hamza (2016-01-01)
    Article
    Open Access
    We propose and experimentally demonstrate a demultiplexer with point-defect resonators and a reflection feedback mechanism in a photonic crystal waveguide (PCW). A tapered PCW has been chosen as the necessary reflector, ...
  • Effects of periodic forcing on the temporally correlated spikes of a semiconductor laser with feedback 

    Amaral Sorrentino, Taciano; Quintero Quiroz, Carlos Alberto; Aragoneses Aguado, Andrés; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina (2015-03-09)
    Article
    Open Access
    Optical excitable devices that mimic neuronal behavior can be building-blocks of novel, brain-inspired information processing systems. A relevant issue is to understand how such systems represent, via correlated spikes, ...
  • Stabilization of flat-mirror vertical-external-cavity surface-emitting lasers by spatiotemporal modulation of the pump profile 

    Ahmed Waseem, Waqas Waseem; Kumar, Shubham; Herrero Simon, Ramon; Botey Cumella, Muriel; Radziunas, Mindaugas; Staliunas, Kestutis (2015-10-20)
    Article
    Open Access
    We propose and demonstrate theoretically that vertical-external-cavity surface-emitting lasers (VECSELs) with external flat mirrors can be stabilized by applying a periodic spatiotemporal modulation of the pump current. ...
  • Rogue waves in injected semiconductor lasers with current modulation: role of the modulation phase 

    Ahuja, Jatin; Nalawade, Dhananjay Bhiku; Zamora Munt, Jordi; Vilaseca Alavedra, Ramon; Masoller Alonso, Cristina (2014-11-17)
    Article
    Restricted access - publisher's policy
    Semiconductor lasers with continuous-wave optical injection display a rich variety of behaviors, including stable locking, periodic or chaotic oscillations, excitable pulses, etc. Within the chaotic regime it has been shown ...
  • Avalanche of stimulated forward scattering in high harmonic generation 

    Serrat Jurado, Carles; Roca, David; Budesca, Josep M.; Seres, Jozsef; Seres, Enikoe; Aurand, Bastian; Hoffmann, Andreas; Namba, Shinichi; Kuehl, Thomas; Spielmann, Christian (2016-04-05)
    Article
    Restricted access - publisher's policy
    Optical amplifiers in all ranges of the electromagnetic spectrum exhibit an essential characteristic, namely the input signal during the propagation in the amplifier medium is multiplied by the avalanche effect of the ...
  • Heavy-tailed fluctuations in the spiking output intensity of semiconductor lasers with optical feedback 

    Lan Boon, Leong; Masoller Alonso, Cristina (2016-02-22)
    Article
    Open Access
    Although heavy-tailed fluctuations are ubiquitous in complex systems, a good understanding of the mechanisms that generate them is still lacking. Optical complex systems are ideal candidates for investigating heavy-tailed ...
  • Strong-field-enhanced forward scattering of high-order harmonics 

    Serrat Jurado, Carles (Springer, 2015-01-25)
    Part of book or chapter of book
    Open Access
    We show that scattering of ultrashort XUV pulses from strong-field driven electron wave packets is enhanced as compared with normal weak scattering from bound or free electrons. We predict large XUV amplification in ...
  • Thermodynamics of error correction 

    Sartori, Pablo; Pigolotti, Simone (2015-12-10)
    Article
    Open Access
    Information processing at the molecular scale is limited by thermal fluctuations. This can cause undesired consequences in copying information since thermal noise can lead to errors that can compromise the functionality ...
  • Tunable wavelength-demultiplexer by tapered photonic crystal waveguide 

    Hayran, Zeki; Turduev, Mirbek; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis; Kurt, H. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    We numerically investigate the design of a wavelength de-multiplexer based on a tapered photonic crystal waveguide. The tapered waveguide is generated by reducing the width of the channel which, in turn, provides a gradual ...

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