• Characterization of a rapid scan FTIR for ultrafast probing in the mid-IR region 

      Moreno Mencía, David (Universitat Politècnica de Catalunya, 2016-09-09)
      Projecte Final de Màster Oficial
      Accés obert
      The properties of materials in the mid-infrared spectral region (3-15 \mu m) is vital for understanding their operation and performance. It is challenging to characterize femtosecond pulses in this spectral region. In this ...
    • Holographic imaging of nanometer-scale phase-separation during a phase transition 

      Valls Conesa, Jordi (Universitat Politècnica de Catalunya, 2019-09-09)
      Projecte Final de Màster Oficial
      Accés obert
      Quantum materials is a broad term used in condensed matter physics to define materials whose collective properties are governed by quantum behavior, which are challenging to understand. These materials are sensitive to ...
    • The insulator-metal phase transition in VO2 measured at nanometer length scales and femtosecond time scales 

      Vidas, Luciana (Universitat Politècnica de Catalunya, 2019-05-02)
      Tesi
      Accés obert
      The physics of transition-metal oxides presents a challenge to our current understanding of condensed matter physics. The main difficulty arises from a competition between electron-electron and electron-phonon interactions ...
    • Optical control of thermal diffusion in phase change materials 

      Pérez Salinas, Daniel (Universitat Politècnica de Catalunya, 2016-09-09)
      Projecte Final de Màster Oficial
      Accés obert
      The long term crystallization of amorphous Ge2Sb2Te5 (GST) induced by femtosecond laser pulses has been numerically and experimentally studied. Simulations of the evolution of temperature and crystalline fraction after a ...