Ponències/Comunicacions de congressos

Recent Submissions

  • Inverse-design of non-Hermitian potentials for light management 

    Botey Cumella, Muriel; Ahmed Waseem, Waqas Waseem; Herrero Simon, Ramon; Wu, Yina; Staliunas, Kestutis (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2022)
    Conference report
    Open Access
    In this paper, we propose a general inverse-design strategy based on genetic algorithm optimization to achieve ‘on demand’ manipulation of light in one-dimensional (1D) and two-dimensional (2D) non-Hermitian systems. The ...

  • Attosecond core-level spectroscopy reveals the flow of excitation in a material between light, carriers and phonons 

    Sidiropoulos, Themistoklis P. H.; Palo, Nicola di; Rivas Barragan, Daniel; Severino, Stefano; Reduzzi, Maurizio; Nandy, Biplob; Bauerhenne, Bernd; Krylow, Sergej; Vasileiadis, Thomas; Biegert, Jens (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    Conference report
    Open Access
    We use attosecond core-level X-ray spectroscopy to disentangle the spectral and dynamical signatures of energy conversion pathways between photons, charge carriers and the lattice in graphite with attosecond precision and ...

  • Restricted Hilbert transform for feasible light management 

    Botey Cumella, Muriel; Ahmed Waseem, Waqas Waseem; Herrero Simon, Ramon; Wu, Yina; Staliunas, Kestutis (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
    Conference report
    Open Access
    A feasible restricted Hilbert Transform (HT) is presented to solve the challenging practical realization of non-Hermitian systems, restricting the complex susceptibility within practical limits. Beyond closed-conservative ...

  • High-throughput live imaging using Light Sheet Microscopy 

    Gualda Manzano, Emilio José; Bernardello, Matteo; Marsal, Maria; Loza Álvarez, Pablo (2020)
    Conference report
    Open Access
    We have developed a compact, multi-modal lightsheet microscope platform where different kind of experiments may be addressed with a single equipment. We will evaluate the performance of the Flexi-SPIM platform and its ...

  • Second harmonic generation from an ITO nanolayer: experiment versus theory 

    Rodríguez Suñé, Laura; Scalora, Michael; Johnson, Allan; Cojocaru, Crina; Akozbek, Neset; Coppens, Zachary; Pérez Salinas, Daniel; Wall, Simon; Trull Silvestre, José Francisco (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
    Conference report
    Open Access
    We report a comparative experimental and theoretical study of second harmonic generation from a 20nm-thick indium tin oxide nanolayer in the proximity of the epsilon-near-zero condition. We record the efficiency of the ...

  • Topology Transitions of Anisotropy Induced Bound States in the Continuum 

    Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (2018)
    Conference report
    Open Access
    We demonstrate that Bound states In the Continuum (BICs) are supported in planar anisotropic structures where the optic axes are arbitrarily oriented. Moreover, we reveal fundamental new topological properties of these ...

  • Existence loci of bound states in the continuum in the parameter space of anisotropic planar structures 

    Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (Optical Society of American (OSA), 2019)
    Conference lecture
    Open Access
    Bound states in the continuum (BICs), first predicted in the field of quantum physics [1], are localized radiationless states existing in the part of the spectrum that corresponds to radiative modes. BICs are a general ...

  • Waveguide stopped light mediated by mode transitions 

    Pujol Closa, Maria del Pilar; Gomis Bresco, Jordi; Gomez Diaz, J. Sebastian; Artigas García, David (Optical Society of American (OSA), 2019)
    Conference lecture
    Open Access
    Hyperbolic metamaterials (HMMs) are uniaxial materials that have hyperbolic dispersion curves. There are two types of hyperbolic metamaterials, type I that is described by a permittivity tensor with e|| < 0 and e¿ > 0, and ...