Enviaments recents

  • Spectroscopic characterization of Er3+, Yb3+ co-doped UC single crystals : the influence of host and sensitizer concentrations 

    Saleta Reig, David (Universitat Politècnica de Catalunya, 2018-10-24)
    Projecte Final de Màster Oficial
    Accés obert
    Realitzat a/amb:  Bundesanstalt für Materialforschung und -prüfung
    The energy transfer upconversion (ETU) mechanism is known to be the most efficient route for the conversion of near infrared (NIR) light to visible emission in Ln3+-co-doped systems. In this work, we examined these energy ...
  • Coherence-based quantum random number generator 

    Álvarez Velásquez, Juan Rafael (Universitat Politècnica de Catalunya, 2018-08-27)
    Projecte Final de Màster Oficial
    Accés obert
    We consider the random change of the phase of a laser as the physical source of randomness that allows the implementation a new type of quantum random number generator (QRNG) . We analyze the phase noise model of a laser ...
  • Live monitoring of heart rate and blood oxygenation trend using non-contact IPPG 

    Luna Labrador, Javier (Universitat Politècnica de Catalunya, 2018-07-20)
    Projecte Final de Màster Oficial
    Accés restringit per acord de confidencialitat
  • Optical depth sectioning in self-mixing lasers for biomedical applications 

    Cabedo Bru, Josep (Universitat Politècnica de Catalunya, 2015-09-07)
    Projecte Final de Màster Oficial
    120 months embargo
    Self-mixing interferometry is a measurement technique based on the effect that in a laser the reinjection of emitted light back-reflected into its cavity has on the the properties of the laser itself. In diode lasers, ...
  • Photoconductivity in High-Quality Graphene 

    Davydovskaya, Diana (Universitat Politècnica de Catalunya, 2015-09-08)
    Projecte Final de Màster Oficial
    Accés obert
    Graphene is a relatively new material with unique properties that found application in the field of electronics and optoelectronics. A broadband absorption makes it especially interesting for photodetection applications. ...
  • Sensitivity Matrix Implementation in the Monte Carlo Package MBioICFO for the Simulation of Photon Migration in Tissues 

    Gerdes, Niklas (Universitat Politècnica de Catalunya, 2015-10-23)
    Projecte Final de Màster Oficial
    Accés obert
    An extension of the Monte Carlo method in diffuse optics was developed. Diffuse optical technology measures light absorption and scattering in human tissue. A sensitivity matrix has to be constructed to obtain structural ...
  • Optomechanics with levitating nitrogen-vacancy centers 

    Ahmed Abobeih, Mohamed (Universitat Politècnica de Catalunya, 2015-10-23)
    Projecte Final de Màster Oficial
    60 months embargo
    Levitated nanoparticles in high vacuum have recently demonstrated unique capabilities to advance the field of optomechanics, by providing a new platform for ultra high quality factors nanomechanical oscillators, thanks to ...
  • Photonic techniques for microwave systems: application to filtering and correlation radiometers 

    Jiao, Yansong (Universitat Politècnica de Catalunya, 2015-09-08)
    Projecte Final de Màster Oficial
    Accés obert
    Realitzat a/amb:  Karlsruher Institut für Technologie
    This thesis work has been devoted to the study of photonic techniques and devices applied to the treatment of signals at microwave frequencies, the so-called microwave photonics technology field. The benefits photonics may ...
  • Randomized Intermode Beating in pulsed Fiber Lasers 

    Strobel, Noah Simon (Universitat Politècnica de Catalunya, 2015-09-09)
    Projecte Final de Màster Oficial
    Accés restringit per acord de confidencialitat
  • Quantum computing by interrogation 

    Supic, Ivan (Universitat Politècnica de Catalunya, 2014-09-09)
    Projecte Final de Màster Oficial
    Accés obert
    [ANGLÈS] Quantum information theory forms a bridge between the foundations of quantum mechanics and its promising practical potentials. The extensive theoretical research has been conducted during the last decades and the ...
  • Generation of intrinsically CEP-stable few-cycle pulses in the mid-IR 

    Sánchez Peacham, Daniel Alexander (Universitat Politècnica de Catalunya, 2013-09-10)
    Projecte Final de Màster Oficial
    Accés obert
    [ANGLÈS] The generation of few cycle pulses in the mid-IR is investigated through a numerical non linear propagation code as a seed pulse for an OPCPA system
  • Characterization of molecular orientation in super-resolution fluorescence microscopy 

    Zhao, Yibing (Universitat Politècnica de Catalunya, 2012-09-06)
    Projecte Final de Màster Oficial
    Accés obert
    In this thesis we aim to characterize the effect of molecular dipole orientation on the resolution of super-resolution fluorescence microscopy techniques that rely on single molecule detection and localization.

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