Enviaments recents

  • Single domain spinor Bose-Einstein condensate 

    Palacios Álvarez, Silvana (Universitat Politècnica de Catalunya, 2017-07-31)
    Tesi
    Accés obert
    This work reports on the construction of a new-generation system capable to create single-mode spinor Bose-Einstein condensates of 87Rb, and non-destructively probe them using optical Faraday rotation. This system brings ...
  • High power, high intensity few-cycle pulses in the mid-IR for strong-field experiments 

    Baudisch, Matthias (Universitat Politècnica de Catalunya, 2017-07-12)
    Tesi
    Accés obert
    High-energy, few-cycle, mid-lR radiation sources featuring high pulse repetition rates are of tremendous interest for a variety of strong-field physics and attoscience applications. Such systems could be used in combination ...
  • Hybrid photonic-plasmonic devices with single nanoscale light sources 

    Bermúdez Ureña, Esteban (Universitat Politècnica de Catalunya, 2017-07-17)
    Tesi
    Accés obert
    The field of photonics comprehends the generation, manipulation and detection of light (photons). Over the past decades, it has underpinned many of the technological advances upon which we rely on a daily basis, from our ...
  • Self-cleaning optical surfaces for the inkjet and 3D printing industry 

    Noyan, Mehmet Alican (Universitat Politècnica de Catalunya, 2017-06-23)
    Tesi
    Accés obert
    Liquid and solid repellent surfaces are key to many industries. For example, construction industry benefits from self-cleaning windows, cements, paints, roof tiles, and corrosion resistant surfaces, while easy-to-clean, ...
  • Exploring flatland nano-optics with graphene plasmons 

    Woessner, Achim (Universitat Politècnica de Catalunya, 2017-05-11)
    Tesi
    Accés obert
    Plasmons are charge oscillations coupled to electromagnetic radiation. One of their most intriguing properties is their deep subwavelength confinement resulting in strongly enhanced light-matter interaction. Metal plasmons ...
  • Multi-junction thin film solar cells for an optimal light harvesting 

    Mantilla Pérez, Paola (Universitat Politècnica de Catalunya, 2017-04-24)
    Tesi
    Accés obert
    Thin film photovoltaics encompass a group of technologies able to harvest light within a few microns thickness. The reduced thickness allows a low cost of manufacture while making the films flexible and adaptable to ...
  • Insights on the spatiotemporal organization of integrins and their ligands using quantitative biophysical tools 

    Sosa Costa, Alberto (Universitat Politècnica de Catalunya, 2017-03-02)
    Tesi
    Accés obert
    The migration of leukocytes from the blood stream to sites of injury and infection in the extravascular tissues is fundamental for the immune response. Two of the main receptors mediating this process are the integrins ...
  • Entanglement, Bell’s inequalities and coherence : new ideas and new scenarios 

    Valles Mari, Adam (Universitat Politècnica de Catalunya, 2017-02-14)
    Tesi
    Accés obert
    The work presented in this thesis, mostly experimental, is based on three main pillars: the concepts of entanglement, Bell¿s inequalities and coherence. Entanglement is a very special type of correlation that can exist ...
  • A quantum light-matter interface with Rydberg polaritons in a cold atomic ensemble 

    Distante, Emanuele (Universitat Politècnica de Catalunya, 2017-03-24)
    Tesi
    Accés obert
    Nonlinear optics at the single-photon level enables deterministic photonphoton interaction, a long-standing goal in quantum photonics science. Besides its implication in fundamental aspects of physics, this would unlock ...
  • Quantum measurements with cold atomic ensembles 

    Colangelo, Giorgio (Universitat Politècnica de Catalunya, 2016-12-16)
    Tesi
    Accés obert
    This thesis describes quantum measurements of an ensemble of cold rubidium-87 atoms. We extend the covariance matrix formalism to spin-1 systems, including effects of decoherence, losses due to probing and atom number ...
  • Micro-nano structured optical devices using Ge2Sb2Te5 

    Rudé Moreno, Miquel (Universitat Politècnica de Catalunya, 2016-12-01)
    Tesi
    Accés obert
    Photonic devices are key to implement future communication and information technologies. Their success is largely determined by our capability to appropriately control light in such devices, especially in future reconfigurable ...
  • Spectral evidence for a condensate of dark excitons in a trap 

    Beian, Mussie (Universitat Politècnica de Catalunya, 2016-06-22)
    Tesi
    Accés obert
    Spatially indirect excitons, being composite bosons, are attractive candidates to explore correlated many-body systems. They possess an inherent large electric dipole, a four-fold spin manifold, and can be studied via the ...

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