Now showing items 1-6 of 6

    • Atomically flat gold structures 

      De Vega Esteban, Sandra (Universitat Politècnica de Catalunya, 2015-09-10)
      Master thesis
      Open Access
      We study the optical response of plasmons in atomic gold wires similar to those observed in vicinal silicon surfaces decorated with a sub-monolayer film of this metal. We predict substantial coupling to propagating light ...
    • Classical and quantum aspects of the optical response at the nanoscale 

      Martínez Saavedra, José Ramón (Universitat Politècnica de Catalunya, 2018-12-10)
      Doctoral thesis
      Open Access
      Nanophotonics is one of today’s basic sciences and technologies: an in-depth understanding of the interaction between light and matter on the nano-scale, besides its intrinsic associated scientific interest, enables the ...
    • Nanophotonics of ultrathin films and 2D periodic structures: a combined experimental and theoretical study 

      Mkhitaryan, Vahagn (Universitat Politècnica de Catalunya, 2017-09-29)
      Doctoral thesis
      Open Access
      Photonics is a key enabling technology for many applications ranging from communications to energy and medicine. Its success is largely relying on our capability to appropriately control light in optical devices. To this ...
    • Plasmon-electron interactions in low dimensional materials 

      De Vega Esteban, Sandra (Universitat Politècnica de Catalunya, 2020-02-17)
      Doctoral thesis
      Open Access
      Ever since the advent of modern technology, major developments have come hand in hand with miniaturization and speed of operation. A proof of this is provided by the impressive success of Moore's law, which predicted that ...
    • Thermal and optical-gain effects in nanophotonics with applications to sensing and perfect absorption 

      Meng, Lijun (Universitat Politècnica de Catalunya, 2018-12-11)
      Doctoral thesis
      Open Access
      Surface plasmons, which are characteristic oscillations of induced charges at metal surfaces that can interact strongly with light, are a key topic in nanophotonics. It can tightly confine the optical electric energy in ...
    • Toward next-generation nanophotonic devices 

      Yu, Renwen (Universitat Politècnica de Catalunya, 2019-07-11)
      Doctoral thesis
      Open Access
      In this thesis, we aim to explore several novel designs of nanostructures based on graphene to realize various functionalities. We briefly introduce the fundamental concepts and theoretical models used in this thesis in ...