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

  • Basin entropy as an indicator of a bifurcation in a time-delayed system 

    Tarigo, Juan P.; Stari, Cecilia; Masoller Alonso, Cristina; Marti, Arturo C (Institute of Physics (IOP), 2024-05)
    Article
    Open Access
    The basin entropy is a measure that quantifies, in a system that has two or more attractors, the predictability of a final state, as a function of the initial conditions. While the basin entropy has been demonstrated on a ...
  • Inferring the connectivity of coupled oscillators from event timing analysis 

    Aristides, Raul de Palma; Cerdeira, Hilda; Masoller Alonso, Cristina; Tirabassi, Giulio (Elsevier, 2024-05)
    Article
    Restricted access - publisher's policy
    Understanding the coupling structure of interacting systems is an important open problem, and many methods have been proposed to reconstruct a network from observed data. Most require continuous observation of the nodes’ ...
  • Permutation entropy analysis of EEG signals for distinguishing eyes-open and eyes-closed brain states: Comparison of different approaches 

    Gancio Vázquez, Juan; Masoller Alonso, Cristina; Tirabassi, Giulio (American Institute of Physics (AIP), 2024-04-10)
    Article
    Open Access
    Developing reliable methodologies to decode brain state information from electroencephalogram (EEG) signals is an open challenge, crucial to implementing EEG-based brain–computer interfaces (BCIs). For example, signal ...
  • Anisotropic pressure effects on nanoconfined water within narrow graphene slit pores 

    Ruiz Barragán, Sergio; Marx, Dominik; Forbert, Harald (Royal Society of Chemistry (RSC), 2023-11-07)
    Article
    Restricted access - publisher's policy
    There is an increasing interest toward disclosing and explaining confinement effects on liquids, such as water or aqueous solutions, in slit pore setups. Particularly puzzling are the changes of physical and chemical ...
  • Nanoconfinement effects on water in narrow graphene-based slit pores as revealed by THz spectroscopy 

    Ruiz Barragán, Sergio; Sebastiani, Federico; Schienbein, Philipp; Abraham, Jijo; Schwaab, Gerhard; Nair, Rahul R.; Havenith, Martina; Marx, Dominik (Royal Society of Chemistry (RSC), 2022-10-28)
    Article
    Open Access
    The properties of water at interfaces have long been known to differ from those of bulk water in many distinctive ways. More recently, specific confinement effects different from mere interfacial effects have been discovered ...
  • Controlling monoterpene isomerization by guiding challenging carbocation rearrangement reactions in engineered squalene-hopene cyclases 

    Ludwig, Julian; Curado Carballada, Christian; Hammer, Stephan C.; Schneider, Andreas; Diether, Svenja; Kress, Nico; Ruiz Barragán, Sergio; Osuna Oliveras, Silvia; Hauer, Bernhard (John Wiley & sons, 2024-03-18)
    Article
    Open Access
    The interconversion of monoterpenes is facilitated by a complex network of carbocation rearrangement pathways. Controlling these isomerization pathways is challenging when using common Brønsted and Lewis acid catalysts, ...
  • Mode-cleaning in antisymmetrically modulated non-Hermitian waveguides 

    Akhter, Mohammad Nayeem; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis (2024-01-12)
    Article
    Open Access
    We demonstrate all-optical spatial mode-cleaning in non-Hermitian waveguides. The effect is accounted by a unidirectional coupling among the modes resulting from a simultaneous modulation of the refractive index and the ...
  • Stabilization of microlasers by non-Hermitian potentials 

    Herrero Simon, Ramon; Botey Cumella, Muriel; Benadouda Ivars, Salim; Akhter, Mohammad Nayeem; Staliunas, Kestutis (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2023)
    Conference report
    Open Access
    Vertical-cavity semiconductor lasers as well as single units or arrays of Edge Emitting Lasers suffer from dynamical spatiotemporal instabilities leading to temporally unstable and low spatial beam quality. We propose a ...
  • Non-Hermitian modulations for stabilization of VCSEL, EEL and EEL arrays 

    Herrero Simon, Ramon; Benadouda Ivars, Salim; Botey Cumella, Muriel; Staliunas, Kestutis (2023)
    Conference report
    Restricted access - publisher's policy
    Semiconductor lasers and laser arrays emit temporally unstable and low spatial quality beams associated to intrinsic dynamical spatiotemporal instabilities. W e propose the simultaneous modulations of refractive index and ...
  • Stabilization of laser emission by non-Hermitian potentials 

    Herrero Simon, Ramon; Benadouda Ivars, Salim; Botey Cumella, Muriel; Staliunas, Kestutis (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    Light emission from single lasers and laser arrays can suffer from dynamical spatiotemporal instabilities leading to emitted beams temporally unstable and with low spatial quality. We propose a feasible stabilization ...
  • An equivalent lattice-modified model of interfering Bragg bandgaps and Locally Resonant Stop Bands for phononic crystal made from Locally Resonant elements 

    Redondo Pastor, Francisco Javier; Godinho, Luis; Staliunas, Kestutis; Sanchez Perez, Juan Vicente (2023-08-01)
    Article
    Open Access
    The design and development of advanced devices based on metamaterials to control the transmission of acoustic waves is a hot topic. An important class of these metamaterials is based on phononic crystals with Locally ...
  • Spatially structured optical pump for laser generation tuning 

    Kontenis, Gabrielius; Gailevicius, Darius; Taranenko, Victor; Staliunas, Kestutis (2023-12-23)
    Article
    Open Access
    The goal and essential parameter of laser light conversion is achieving emitted radiation of higher brightness. For many applications, the laser beam must have the highest available beam quality and highest achievable ...

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