Browsing by Contributor "Koppens, Frank"

Now showing items 1-15 of 15

    • Characterization and implementation of resistance-to-time-to-digital readout system for novel photoresistor based on graphene 

      García Gutiérrez, Mario Marcos (Universitat Politècnica de Catalunya, 2017-09-07)
      Master thesis
      Restricted access - confidentiality agreement

    • Detection of graphene motion through light-matter interactions 

      Schädler, Kevin Gerd (Universitat Politècnica de Catalunya, 2012-09-06)
      Master thesis
      Open Access
      [ANGLÈS] In this thesis, we study both experimentally and theoretically the optical detection of the motion of graphene membranes based on fluorescence quenching of the emitters close to graphene. Fluorescence quenching ...

    • Diffuse reflectance spectroscopy characterization of molecular absorption via graphene based photodetectors 

      Evans, Michael (Universitat Politècnica de Catalunya, 2018-09)
      Master thesis
      60 months embargo
      This Master dissertation explores diffuse reflection spectroscopy as a viable tool for analytical chemistry, both quantitatively and qualitatively. In-vitro optical phantoms are created to mimic the turbid diffuse environments ...

    • Exciton engineering with 2D heterostructures. 

      Moreno Abajo, Álvaro (Universitat Politècnica de Catalunya, 2020-09-08)
      Master thesis
      Open Access
      Quantum emitters have an important role in many quantum technologies as quantum sensing and metrology, quantum computation or quantum information. They must be isolated from their environment, but paradoxically some external ...

    • Exploring flatland nano-optics with graphene plasmons 

      Woessner, Achim (Universitat Politècnica de Catalunya, 2017-05-11)
      Doctoral thesis
      Open Access
      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 ...

    • Exploring intersubbands in 2D materials 

      Schmidt, Peter, 1989- (Universitat Politècnica de Catalunya, 2019-04-16)
      Doctoral thesis
      Open Access
      Transition metal dichalcogenides (TMDs) are semiconducting layered materials that can be isolated up to the limit of a single atomic layer. Next to graphene, they are some of the most intensively studied materials within ...

    • Fabrication and characterization of graphene nanostructures 

      Navickaite, Gabriele (Universitat Politècnica de Catalunya, 2012-09-06)
      Master thesis
      Open Access
      [ANGLÈS] We fabricate graphene nanostructures for experimental studies on graphene plasmonics and graphene-quantum dot interactions. We use a focused ion beam to mill structures in a substrate, and deposit graphene on top. ...

    • Graphene optoelectronics from the visible to the mid-infrared 

      Badioli, Michela (Universitat Politècnica de Catalunya, 2015-12-04)
      Doctoral thesis
      Open Access
      Since its discovery in 2004, graphene, a one-atom-thick layer of carbon atoms arranged in a hexagonal lattice, has attracted huge interest from the scientific community due to its extraordinary electronic, mechanical, and ...

    • Intergration of graphene with mid-IR optical materials 

      Kumar, Avinash (Universitat Politècnica de Catalunya, 2019-09-10)
      Master thesis
      Restricted access - author's decision

    • Photoconductivity in High-Quality Graphene 

      Davydovskaya, Diana (Universitat Politècnica de Catalunya, 2015-09-08)
      Master thesis
      Open Access
      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. ...

    • Plasmonically enhanced light absorption in graphene nanoribbons 

      Woessner, Achim (Universitat Politècnica de Catalunya, 2012-09-06)
      Master thesis
      Open Access
      [ANGLÈS] Light absorption plays a crucial role in both optical detectors and photovoltaics. In order to improve the light absorption properties of materials different measures can be taken. This thesis considers light ...

    • Resonances in graphene plasmons 

      Alcaraz Iranzo, David (Universitat Politècnica de Catalunya, 2014-09-09)
      Master thesis
      Open Access
      [ANGLÈS] Graphene is used as a novel, versatile plasmonic material. The most common way to implement resonant light-plasmon coupling is to etch graphene into periodic nanostructures, which is invasive. Here, we study a ...

    • Single quantum emitter manipulation with 2D materials 

      Schädler, Kevin Gerd (Universitat Politècnica de Catalunya, 2018-05-22)
      Doctoral thesis
      Open Access
      Covenantee:   Università degli Studi di Firenze
      Photonics aims to manipulate light by controlling its interactions with matter to enable novel optical technologies for communication, information processing and sensing. Current efforts strive to enter the regime of quantum ...

    • Study of graphene hybrid heterostructures for linear and nonlinear optics 

      Alcaraz Iranzo, David (Universitat Politècnica de Catalunya, 2020-06-23)
      Doctoral thesis
      Open Access
      Graphene is the first of the 2D-material family. It is formed by carbon atoms arranged in a honeycomb lattice, which confers it intriguing physical properties that are still being discovered nowadays. A fundamental advantage ...

    • Ultrafast optoelectronics in 2D materials and their heterostructures 

      Massicotte, Mathieu (Universitat Politècnica de Catalunya, 2017-09-05)
      Doctoral thesis
      Open Access
      Understanding and improving how light is converted into electricity in materials is one of the central goals in the field of optoelectronics. This basic physical process lies at the heart of several major technologies, ...