Recent Submissions

  • Non-Hermitian broad aperture semiconductor lasers based on PT-symmetry 

    Botey Cumella, Muriel; Waseem Ahmed, Waqas; Medina Pardell, Judith; Herrero Simon, Ramon; Staliunas, Kestutis (2019)
    Conference report
    Open Access
    In this paper we propose a novel configuration to regularize the complex spatiotemporal dynamics of broad area lasers into bright light beam. It has recently been shown that arbitrary non-Hermitian optical potentials based ...
  • Hurricane observations with GNSS-reflectometry from CYGNSS mission - case study of Hurricane Irma 2017 

    Guan, Dongliang; Camps Carmona, Adriano José; Hyuk, Park (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    In this study, the ability of GNSS-R technique to observe and track hurricane is investigated from the CYGNSS mission, as the specular reflection points tracks pass through the eye of Hurricane Irma. The clear variations ...
  • Art and math using a equally linked tetrahedron 

    Moreno Lupiáñez, Manuel; Tarrés, Josep; Sánchez Cuenca, Luis; Vinyes, Toni (2019)
    Conference lecture
    Open Access
    The tetrahedron is a well-known polyhedron. The tetrahedron can be shown with a set of lines (bars) made of 3 points (joints) from the different elements; for instance an edge is a line of 2 vertices and the same edge. The ...
  • Building initial models of rotating white dwarfs with SPH 

    Blanco Iglesias, José Miguel; García Senz, Domingo; Cabezón Gómez, Rubén Martín (2019)
    Conference lecture
    Open Access
    A general procedure to build self-gravitational, rotating equilibrium structures with the Smoothed Particle Hydrodynamics (SPH) technique does not exist. In particular, obtaining stable rotating configurations for white ...
  • Validation of a BEPU methodology through a blind benchmark activity at the PKL test facility 

    Freixa Terradas, Jordi; Martínez Quiroga, Víctor Manuel; Casamor Vidal, Max; Reventós Puigjaner, Francesc Josep; Mendizabal Sanz, Rafael (American Nuclear Society (ANS), 2019)
    Conference report
    Restricted access - publisher's policy
    Validation is a key step in the field of thermal hydraulics and has played a crucial role in the implementation of system codes. These codes are then included in licensing methodologies being those either best estimate ...
  • Meta-mirrors with transverse invariance for beam shaping 

    Cheng, Yu-Chieh; Wang, Pei-Yu; Herrero Simon, Ramon; Botey Cumella, Muriel; Staliunas, Kestutis (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
    Conference report
    Restricted access - publisher's policy
    The paper demonstrates spatial filtering in reflection based on meta-mirrors, composed of periodic subwavelength gratings. The periodic modulation of the refraction index on the sub-micron scale exhibits optical beam shaping ...
  • STEM students’ perception of gender mainstreaming in teaching: the development of a measuring tool 

    Alsina Aubach, Montserrat; Mas de les Valls Ortiz, Elisabet; Martínez Costa, Carme; Pino González, David; Peña Carrera, Marta; Barahona Fuentes, Claudia (2019)
    Conference lecture
    Restricted access - publisher's policy
    This study assesses the development process of a tool to measure students’ perceptions of gender mainstreaming in STEM (Science, Technology, Engineering and Mathematics) studies. Within the framework of a pilot project ...
  • Non-Hermitian Light Management Based on Local Hilbert Transform 

    Staliunas, Kestutis; Waseem Ahmed, Waqas; Botey Cumella, Muriel; Herrero Simon, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    Light patterns; Metamaterials; Non-Hermitian optics; Microlasers
  • Phase locked harmonic generation in the opaque region of GaAs 

    Cojocaru, Crina; Rodríguez Suñé, Laura; Escalora, M.; Trull Silvestre, José Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    We demonstrate second and third harmonic generation from a GaAs substrate, well-below the absorption edge, in both transmission and reflection geometries. The pump is tuned at 1064 nm, in the transparency range, while the ...
  • Structured Meta-Mirrors for Beam Spatial Filtering 

    Herrero Simon, Ramon; Wang, Pey-Yu; Botey Cumella, Muriel; Cheng, Yu-Chieh; Staliunas, Kestutis (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    The work presents optical spatial filtering in reflection based on translationally invariant meta-mirrors. The meta-structure is generated by a thin grating presenting a transverse modulation of the refraction index on the ...
  • Analyzing policymaking for TB control in Gombe (Nigeria) 

    Ahmad, Nura MR; Musa, Mustapha; Montañola Sales, Cristina; Prats Soler, Clara; López Codina, Daniel (2019)
    Conference report
    Open Access
  • Enhanced Demand and Capacity Balancing based on alternative trajectory options and traffic volume hotspot detection 

    Melgosa Farrés, Marc; Prats Menéndez, Xavier; Xu, Yan; Delgado Muñoz, Luis
    Conference report
    Open Access
    Nowadays, regulations in Europe are applied at traffic volume (TV) level consisting in a reference location, i.e. a sector or an airport, and in some traffic flows, which act as directional traffic filters. This paper ...

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