Recent Submissions

  • Ultracold dipolar bosons trapped in atomtronic circuits 

    Rovirola Metcalfe, Marc (Universitat Politècnica de Catalunya, 2022-07-19)
    Master thesis
    Restricted access - confidentiality agreement
    Covenantee:   Universitat de Barcelona / Institut de Ciències Fotòniques (ICFO) / Universitat Autònoma de Barcelona
    We consider a ring-shaped triple-well potential with few polar bosons characterized by a long-range and anisotropic interaction. By diagonalizing the extended Bose-Hubbard Hamiltonian, that treats sites as macroscopic ...
  • A compact and tunable atomic magnetometer for femtotesla radio-frequency field detection 

    Martín Romero, Fernando (Universitat Politècnica de Catalunya, 2022-07-19)
    Master thesis
    Open Access
    Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona
    We demonstrate an ultra-high sensitivity rf optical magnetometer based on a compact 5×5×8 mm3 Rubidium-87 vapor cell in a mu-metal shielded environment. The rf field is detected via a Faraday rotation effect on the linear ...
  • Analysis of performance of the Chordal Branch and Bound algorithm 

    García Hernández, Álvaro (Universitat Politècnica de Catalunya, 2022-07-07)
    Master thesis
    Open Access
    Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona
    In the era of quantum technology, benchmarking classical algorithms is necessary for certifying the results given by the quantum device to the optimization problem that is wanted to solve. Here we analyse a new algorithm ...
  • Multiparametric evaluation of vascular occlusion test as an aid to quantify vascular and endothelial dysfunction with diffuse optics 

    Martínez García, Jacqueline (Universitat Politècnica de Catalunya, 2022-07-08)
    Master thesis
    Restricted access - confidentiality agreement
    Hybrid diffuse optical (HDO) techniques using diffuse correlation spectroscopy (DCS) and time-domain near-infrared spectroscopy (TD-NIRS) together with vascular occlusion test (VOT) offer dynamic evaluation of vascular and ...
  • Design of new Near-Eye Display systems for AR and VR glasses 

    Cobos Concha, Adrià (Universitat Politècnica de Catalunya, 2022-07-21)
    Master thesis
    Restricted access - confidentiality agreement
    Covenantee:   Inmersia Computers
    In this work, we introduce and develop a new Near-Eye Display (NED) AR/VR switching prototype based on Holographic Optical Elements (HOEs) and retinal projection. In comparison to the commercially available devices and the ...
  • Influence of SnO2 layer and thickness of BiVO4 photoanodes for photoelectrochemical water splitting 

    Gerónimo Gómez, Laura (Universitat Politècnica de Catalunya, 2022-09-06)
    Master thesis
    Open Access
    Covenantee:   Institut de Ciències Fotòniques (ICFO)
    Bismuth vanadate has attracted much attention as one of the most promising materials for photoelectrochemical (PEC) water splitting. This Master Thesis is aimed at understanding BiVO4 films growth to use it as photoanodes. ...
  • Comparison of the optical properties of metallic and high dielectric 2D metasurfaces 

    González Morote, Víctor (Universitat Politècnica de Catalunya, 2022-07-20)
    Master thesis
    Restricted access - confidentiality agreement
    Covenantee:   Institut de Ciència de Materials de Barcelona
    Chiral metasurfaces can transmit one circularly polarized light, while almost completely refuse the opposite handedness. In this project, a comparison of the optical properties of metallic vs high dielectric 2D chiral ...
  • Ultrafast singlet fission dynamics in polymer-based thin-films measured by femtosecond transient absorption spectroscopy 

    Caravaca Crespo, Eva (Universitat Politècnica de Catalunya, 2022-08-26)
    Master thesis
    Open Access
    Covenantee:   Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona / Universitat Autònoma de Barcelona
    Singlet fission is a photophysical process which converts an excited singlet state into two independent triplet states. This has attracted significant attention for photovoltaic devices due to the fact that more than one ...
  • Seeing through smoke: modelling light scattering in irregular media 

    Bobi Olmo, Aleix Ramón (Universitat Politècnica de Catalunya, 2022-09-08)
    Master thesis
    Open Access
    A T-Matrix method has been implemented and used to calculate the propagation properties for multiple types of irregular particles, which plays an important role in light propagation through turbid media such as smoke or ...
  • Synchronization of interacting pairs of Silicon-based optomechanical crystals 

    Vitrià Montero, Elisenda (Universitat Politècnica de Catalunya, 2022-07-19)
    Master thesis
    Open Access
    Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona
    The coupling between optical and mechanical waves within optical resonators has become a growing study field in the last years due to its scientific and technological importance. Optomechanical crystals (OMCs) are a ...
  • Controlling light in scattering media using ultrasound modulation 

    Mestre Torà, Blanca (Universitat Politècnica de Catalunya, 2022-07-21)
    Master thesis
    Open Access
    Covenantee:   Universitat de Barcelona
    Light-based methods are fundamental in biology and biomedical sciences. They allow for non-invasive diagnosis and localized treatments with resolutions down to the sub-cellular level. However, light scattering inside ...
  • Fundamental limits of phase estimation with nonlinear interferometers 

    Pérez Castro, David (Universitat Politècnica de Catalunya, 2022-09-09)
    Master thesis
    Open Access
    Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona
    Interferometers have established themselves as good phase sensitivity estimators, although passive interferometers (those characterized by the SU(2) group) are bounded by the shot noise limit. If we want to overcome this ...

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