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

  • 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
    Accés obert
    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
    Accés obert
    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
    Accés obert
    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
    Accés restringit per política de l'editorial
    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
    Accés obert
    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
    Accés obert
  • A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells 

    Liu, Quan; Romero Gómez, Pablo; Mantilla Perez, Paola; Colodrero, Silvia; Toudert, Johann; Martorell Pena, Jordi (2017-09-20)
    Article
    Accés restringit per política de l'editorial
    An optimal photon absorption in thin film photovoltaic technologies can only be reached by effectively trapping the light in the absorber layer provided a considerable portion of the photons is rejected or scattered out ...
  • Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells 

    Liu, Quan; Toudert, Johann; Liu, Fengqing; Mantilla Perez, Paola; Montes Bajo, Miguel; Rusell, Thomas P.; Martorell Pena, Jordi (2017-07-17)
    Article
    Accés restringit per política de l'editorial
    Large area flexible electronics rely on organic or hybrid materials prone to degradation limiting the device lifetime. For many years, photo-oxidation has been thought to be one of the major degradation pathways. However, ...
  • Spatial Filters on Demand Based on Aperiodic Photonic Crystals 

    Gailevicius, Darius; Purlys, Vytautas; Peckus, Martynas; Gadonas, Roaldas; Staliunas, Kestutis (2017-08-01)
    Article
    Accés restringit per política de l'editorial
    Photonic Crystal spatial filters, apart from stand-alone spatial filtering function, can also suppress multi-transverse-mode operation in laser resonators. Here it is shown that such photonic crystals can be designed by ...
  • An indium tin oxide-free polymer solar cell on flexible glass 

    Formica, Nadia; Mantilla Perez, Paola; Ghosh, Dhriti Sundar; Janner, Davide; Chen, T. L.; Huang, Minghuang; Garner, Sean; Martorell Pena, Jordi; Pruneri, Valerio (2015-02-05)
    Article
    Accés obert
    Future optoelectronic devices and their low-cost roll-to-roll production require mechanically flexible transparent electrodes (TEs) and substrate materials. Indium tin oxide (ITO) is the most widely used TE because of its ...
  • Monitoring degradation mechanisms in PTB7:PC71BM photovoltaic cells by means of impedance spectroscopy 

    Arredondo, Belen; Martin Lopez, Maria B.; Romero, Beatriz; Vergaz, Ricardo; Romero Gómez, Pablo; Martorell Pena, Jordi (2015-10-23)
    Article
    Accés obert
    We have used impedance spectroscopy technique to monitor degradation mechanisms in organic solar cells based on a blend of PTB7:PC71BM. We have measured the impedance of the cell on a periodical basis for almost four months, ...
  • 4-terminal tandem photovoltaic cell using two layers of PTB7:PC71BM for optimal light absorption 

    Mantilla Perez, Paola; Martinez Otero, Alberto; Romero Gómez, Pablo; Martorell Pena, Jordi (2015-08-26)
    Article
    Accés obert
    A 4-terminal architecture is proposed in which two thin active layers (<100 nm) of PTB7:PC71BM are deposited on a two-sided ITO covered glass substrate. By modeling the electric field distribution inside the multilayer ...

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