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:  Federal Institute for Materials Research and Testing (Germany)
    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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